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Math Problems
Grade 8
Percent of a number: tax, discount, and more
Mira has breakfast at a restaurant. She leaves a
20
%
20\%
20%
tip of
$
1.80
\$1.80
$1.80
.
\newline
What is the price of Mira's breakfast, before tip?
\newline
$
\$
$
◻
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d
(
1
)
=
8
d
(
n
)
=
d
(
n
−
1
)
×
(
−
5
)
what is the third term
d(1)=8 \quad d(n)=d(n-1)\times(-5) \quad \text{what is the third term}
d
(
1
)
=
8
d
(
n
)
=
d
(
n
−
1
)
×
(
−
5
)
what is the third term
Get tutor help
d
(
1
)
=
8
d(1)=8
d
(
1
)
=
8
d
(
n
)
=
d
(
n
−
1
)
×
(
−
5
)
d(n)=d(n-1)\times(-5)
d
(
n
)
=
d
(
n
−
1
)
×
(
−
5
)
\newline
What is the third term?
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Practice
\newline
1
1
1
. Sharon paid
$
78
\$ 78
$78
sales tax on a new camera. If the sales tax rate is
6.5
%
6.5 \%
6.5%
, what was the cost of the camera?
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Find the value of each variable. Line
ℓ
\ell
ℓ
is a tangent.
\newline
1
1
1
.
\newline
2
2
2
.
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Noah's bill for breakfast at a restaurant was
$
23.65
\$23.65
$23.65
. He left a
20
%
20\%
20%
tip. What was the total cost of his breakfast, including tip?
\newline
$
\$
$
_
_
_
_
\_\_\_\_
____
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The sales tax rate is
10
%
10\%
10%
. If Debbie buys a golf club priced at
$
68.90
\$68.90
$68.90
, what will be the total cost including tax?
\newline
$
_
_
_
\$\_\_\_
$___
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Sharon bought an aquarium online. It cost
$
21.25
\$21.25
$21.25
plus
20
%
20\%
20%
shipping and handling. What was the total cost?
\newline
$
\$
$
_____
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The sales tax rate is
5
%
5\%
5%
. If Ryan buys a kitchen table priced at
$
64.60
\$64.60
$64.60
, what will be the total cost including tax?
\newline
$
\$
$
_
_
_
_
\_\_\_\_
____
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Grayson buys a gold ring priced at
$
54.00
\$54.00
$54.00
. Shipping and handling are an additional
30
%
30\%
30%
of the price. How much shipping and handling will Grayson pay?
\newline
$
\$
$
_____
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Alexandra buys a silver necklace priced at
$
60.40
\$60.40
$60.40
. If the sales tax is
10
%
10\%
10%
, what will be the total cost including tax?
\newline
$
\$
$
_
_
_
_
\_\_\_\_
____
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A store pays
$
43.02
\$43.02
$43.02
for a rocking chair. The store marks up the price by
50
%
50\%
50%
. What is the amount of the mark-up?
\newline
$
\$
$
_____
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Xavier buys a dog bowl online for
$
8.50
\$8.50
$8.50
. If shipping and handling are an additional
30
%
30\%
30%
of the price, how much shipping and handling will Xavier pay?
\newline
$
\$
$
_
_
_
_
\_\_\_\_
____
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Stanley is a salesperson. He sold a silver coat rack for
$
61
\$61
$61
and earned
15
%
15\%
15%
commission. How much commission did Stanley earn?
\newline
$
\$
$
_____
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Bryan's bill for lunch at a restaurant was
$
25.80
\$25.80
$25.80
. He left a
15
%
15\%
15%
tip. What was the amount of the tip?
\newline
$
\$
$
_____
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Ming took a cab across town. His fare was
$
22
\$22
$22
, and he leaves an
18
%
18\%
18%
tip.
\newline
What is the total amount Ming pays the cab driver?
\newline
$
\$
$
◻
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If a stamp costs
£
0.29
£ 0.29
£0.29
, how many stamps could you buy with
£
14.50
£ 14.50
£14.50
?
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William works at a nearby electronics store. He makes a commission of
6
%
6 \%
6%
on everything he sells. If he sells a computer for
$
764
\$ 764
$764
.
00
00
00
, how much money does William make in commission?
\newline
$
\$
$
□
\square
□
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Andrea bought tacos from a food truck and left a
25
%
25\%
25%
tip of
$
2.00
\$2.00
$2.00
. What was the price of Andrea's tacos, before tip?
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Casey buys a bracelet. She pays for the bracelet and pays
0.72
i
n
s
a
l
e
s
t
a
x
.
T
h
e
s
a
l
e
s
t
a
x
r
a
t
e
i
s
0.72 in sales tax. The sales tax rate is
0.72
in
s
a
l
es
t
a
x
.
T
h
es
a
l
es
t
a
x
r
a
t
e
i
s
6
6
6
\%$. What is the original price of the bracelet, before tax?
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Gabriela has dinner at a cafe and the cost of her meal is
45.00
45.00
45.00
. Because of the service, she wants to leave a
15
%
15\%
15%
tip.
Get tutor help
A grocery store sells a bag of
4
4
4
oranges for
$
1.04
\$ 1.04
$1.04
. What is the unit cost?
\newline
Answer:
$
□
\$\square
$
□
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Question
7
7
7
options: A computer costs the importer
$
1800.00
\$1800.00
$1800.00
. The importer then sells it to make a profit of
15
%
15\%
15%
. The profit will be:
$
\$
$
The selling price is:
$
\$
$
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Problem
24
24
24
:
\newline
(first taught in lesson
79
79
79
)
\newline
Alan bought a fencing foil for
$
56
\$ 56
$56
. When he went to the cash register, the total including the sales tax was
$
60.20
\$ 60.20
$60.20
. What was the sales tax rate? (You can use a calculator.)
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Christopher has breakfast at a cafe and the cost of his meal is
36.00
36.00
36.00
. Because of the service, he wants to leave a
10
%
10\%
10%
tip. What is his total bill including tip?
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The manager at Gabriela's Furniture Store is trying to figure out how much to charge for a book shelf that just arrived. The book shelf was bought at a wholesale price of
$
147.00
\$147.00
$147.00
, and Gabriela's Furniture Store marks all furniture by
60
%
60\%
60%
.
\newline
At what price should the manager sell the book shelf?
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William works at a nearby electronics store. He makes a commission of
6
%
6 \%
6%
on everything he sells. If he sells a computer for
$
764.00
\$ 764.00
$764.00
, how much money does William make in commission?
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Scarlett went shopping for a new phone. Sales tax where she lives is
5.75
%
5.75 \%
5.75%
. What number should she multiply the price of the phone by to find the total plus tax in one step?
\newline
Answer:
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Ruby invests money in an account paying a simple interest of
7.4
%
7.4 \%
7.4%
per year. If she invests
$
60
\$ 60
$60
and no money will be added or removed from the investment, how much will she have in one year, in dollars and cents?
\newline
Answer:
$
\$
$
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If you are dealt
4
4
4
cards from a shuffled deck of
52
52
52
cards, find the probability of getting one queen and three kings.
\newline
The probability is
□
\square
□
.
\newline
(Round to six decimal places as needed.)
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Jessica's Furniture Store buys a couch at a wholesale price of
$
113.00
\$113.00
$113.00
. If the markup rate at Jessica's Furniture Store is
45
%
45\%
45%
, what is the markup for the couch?
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Caleb bought groceries and paid
$
1.60
\$1.60
$1.60
in sales tax. The sales tax rate is
2.5
%
2.5\%
2.5%
. What was the price of Caleb's groceries, before tax?
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Mira has breakfast at a restaurant. She leaves a
20
%
20\%
20%
tip of
1.80
1.80
1.80
. What is the price of Mira's breakfast, before tip?
Get tutor help
Gabriela has dinner at a cafe and the cost of her meal is
$
45.00
\$ 45.00
$45.00
. Because of the service, she wants to leave a
15
%
15 \%
15%
tip.
\newline
What is her total bill including tip?
\newline
$
\$
$
\newline
Show Calculator
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Suppose you have
$
7500
\$ 7500
$7500
deposited at
2.35
%
2.35 \%
2.35%
compounded daily. About long will it take your balance to increase to
$
9000
\$ 9000
$9000
?
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Casey buys a bracelet. She pays for the bracelet and pays
$
0.72
\$ 0.72
$0.72
in sales tax. The sales tax rate is
6
%
6 \%
6%
.
\newline
What is the original price of the bracelet, before tax?
Get tutor help
Ming took a cab across town. His fare was
$
22
\$ 22
$22
, and he leaves an
18
%
18 \%
18%
tip.
\newline
What is the total amount Ming pays the cab driver?
Get tutor help
If you want to buy an item in a store that costs
$
33.50
\$ 33.50
$33.50
and is on sale for
5
%
5 \%
5%
off, then how much would the item actually cost you after the discount? Round to the nearest cent.
\newline
Answer:
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If you want to buy an item in a store that costs
$
34.50
\$ 34.50
$34.50
and is on sale for
10
%
10 \%
10%
off, then how much would the item actually cost you after the discount? Round to the nearest cent.
\newline
Answer:
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The stock of Company A lost
4
%
4 \%
4%
today to
$
67.92
\$ 67.92
$67.92
. What was the opening price of the stock in the beginning of the day?
\newline
Answer:
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The stock of Company A gained
6
%
6 \%
6%
today to
$
33.39
\$ 33.39
$33.39
. What was the opening price of the stock in the beginning of the day?
\newline
Answer:
Get tutor help
Jessica's Furniture Store buys a couch at a wholesale price of
$
113.00
\$ 113.00
$113.00
.
\newline
If the markup rate at Jessica's Furniture Store is
45
%
45 \%
45%
, what is the markup for the couch?
\newline
$
\$
$
Get tutor help
Brandon's Furniture Store buys a sofa at a wholesale price of
$
97.00
\$ 97.00
$97.00
.
\newline
If the markup rate at Brandon's Furniture Store is
40
%
40 \%
40%
, what is the markup for the sofa?
\newline
$
\$
$
Get tutor help
Andrea bought tacos from a food truck and left a
25
%
25 \%
25%
tip of
$
2.00
\$ 2.00
$2.00
.
\newline
What was the price of Andrea's tacos, before tip?
\newline
$
\$
$
Get tutor help
Christopher has breakfast at a cafe and the cost of his meal is
$
36.00
\$ 36.00
$36.00
. Because of the service, he wants to leave a
10
%
10 \%
10%
tip.
\newline
What is his total bill including tip?
\newline
$
\$
$
Get tutor help
Gabriela has dinner at a cafe and the cost of her meal is
$
45.00
\$ 45.00
$45.00
. Because of the service, she wants to leave a
15
%
15 \%
15%
tip.
\newline
What is her total bill including tip?
\newline
$
\$
$
Get tutor help
William works at a nearby electronics store. He makes a commission of
6
%
6 \%
6%
on everything he sells. If he sells a computer for
$
764.00
\$ 764.00
$764.00
, how much money does William make in commission?
\newline
$
\$
$
Get tutor help
A store has a
25
%
25 \%
25%
off sale on coats. With this discount, the price of one coat is
$
34.50
\$ 34.50
$34.50
.
\newline
What is the original price of the coat?
\newline
$
\$
$
Get tutor help
Mira has breakfast at a restaurant.
\newline
She leaves a
20
%
20 \%
20%
tip of
$
1.80
\$ 1.80
$1.80
.
\newline
What is the price of Mira's breakfast, before tip?
\newline
$
\$
$
Get tutor help