A painting studio is offering a promotion where the first class is fr…

Question

Prompt

A painting studio is offering a promotion where the first class is free, the second class is half off the regular price, and the remaining classes are regularly priced. If the regular price of a class is

$26.40

, which function

f

gives the total cost, in dollars, of

x

classes taken using this promotion, where

x \geq 2

f (x) = 26.40 (x - 1) + 13.20

f (x) = 26.40 (x - 2) + 13.20

f (x) = 26.40 (x - 1) + 13.20 (x - 2)

f (x) = 26.40 (x - 2) + 13.20 (x - 1)