All computers are on sale for 10% off the original price.
If x is the original price of the computer, then the
function that represents the price after only a 10%
discount is:
Choose the composition function that gives the
final sale price after a 10% discount is followed by
a $150 coupon.

The function that gives the price, C, if only a $150
coupon is used is:
C(x) = x - 150

C(P(x)) = 0.9x - 150

If a laptop originally costs $800, the balance due after the 10% discount and $150 gift card is applied is $___