A store has issued two different coupons for its customers to use. One coupon gives customers $20 off their purchase price, and the other coupon gives customers 20% off of their purchase. The store allows customers to use both coupons and choose which coupon to apply first. For this context, ignore sales tax. Let
D
be the function that inputs a cost (in dollars) and outputs the cost after applying the "$20 off" coupon, and let
P
be the function that inputs a cost (in dollars) and outputs the cost after applying the "20% off" coupon.

A customer purchases an item for $120 and asks the cashier to apply the "$20 off" coupon first, followed by the "20% off" coupon. What is the cost of the item after the two coupons are applied?

$Correct

A customer purchases an item for $120 and asks the cashier to apply the "$20 off" coupon first, followed by the "20% off" coupon. Use function notation to represent the cost of the item (in dollars) after the two coupons are applied.

Incorrect

A customer purchase an item for $120 and asks the cashier to apply the "20% off" coupon first, followed by the "$20 off" coupon. What is the cost of the item after the two coupons are applied?

$Correct

A customer purchases an item for $120 and asks the cashier to apply the "20% off" coupon first, followed by the "$20 off" coupon. Use function notation to represent the cost of the item (in dollars) after the two coupons are applied.