3. Determine if the following sequences are Arithmetic or Geometric. Once you do that, write the equation and write the next 3 terms.gegetrice. 13,26,52,104,208,41Equation. −h(n)=2f. 12,24,36,48,88,72Equation: t(n)=12ng. −2,−4,−8,Equation: f(n)=2h. 16,13,10,7,4,1Equation: f(n)=4n−78−8. Write the equation for the following sequences. -a. 500,2000,3500,…+ζ∙0b. 30,150,750,3750,…−h(n)=20−h(n)=218−19. Write the equation for the following two sequences.b. −h(n)=22a. −h(n)=23 Get tutor helpWrite a system of equations to describe the situation below, solve using elimination, and fill in the blanks.The Ashland High School Science Department is purchasing new earth science and physics textbooks this year. Ms. Walton has requested 80 earth science textbooks and 92 physics textbooks for all of her classes, which costs the department a total of $7,744. Mr. Castro has asked for 80 earth science textbooks and 76 physics textbooks, which will cost a total of $6,912. How much do the textbooks cost?Earth science textbooks cost $____ apiece and physics textbooks cost $____ apiece. Get tutor help