Question

HELP PLZ

Answer 1

Given:
Regular price = r
discount rate = 30%
coupon = $5 off any single item at the store

expression: 3(r - 0.3r) - 5

C.) 3(0.7r) - 5 represents the total cost before tax.

3(r-0.3r) - 5 ⇒ 3(0.7r) - 5

The coupon can only be used once because the problem stated any single item not every single item purchased.