Question

the store is having a sale of 20% off a single item. you also have a coupon for $5 off a item.

a. write a function to model the cost of an item with 20% discount
b. write a model to cost of an item with $5 coupon

Answer 1

a) y=x-0.2x
b) y= x-0.2x -5

Answer 2

thank you