Kendall buys magic water beads in bulk. She pays a flat rate for shipping of $4.50 plus $0.75 per a pound of magic beads. What function would represent the relationship between, y, the total cost, and the pounds of beads purchased, x?

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya

391.6 is the correct answer