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Michelle used a $20 bill to pay for a notebook that only costs p dollars. How much change did Michelle receive from the cashier? Write your answer as an expression.

Michelle used a $20\$20 bill to pay for a notebook that only costs pp dollars.\newlineHow much change did Michelle receive from the cashier?\newlineWrite your answer as an expression.

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Full solution

Q. Michelle used a $20\$20 bill to pay for a notebook that only costs pp dollars.\newlineHow much change did Michelle receive from the cashier?\newlineWrite your answer as an expression.
  1. Identify Amount Paid: Identify the total amount Michelle used to pay for the notebook.\newlineMichelle used a $20\$20 bill to pay for the notebook.
  2. Identify Cost of Notebook: Identify the cost of the notebook.\newlineThe notebook costs pp dollars, where pp is the price of the notebook in dollars.
  3. Calculate Change: Calculate the change Michelle should receive.\newlineTo find the change, subtract the cost of the notebook pp dollars) from the amount Michelle used to pay ($20\$20).\newlineChange = Total amount paid - Cost of the notebook\newlineChange = $20−p\$20 - p dollars
  4. Write Change Expression: Write the expression for the change Michelle received.\newlineThe expression for the change Michelle received is $20−p\$20 - p.

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