Question

Huang has a coupon that gives him 20% off all items purchased. He buys 3 shirts that each cost the same amount, and he pays with a $100 bill. Which expression represents the amount of change Huang should receive? Check all that apply.

100 – (0.2(3x))
100 – (0.8(3x))
100 – (1 – 0.2)(3x)
(100 – 1 – 0.2)(x + x + x)
100 – (0.8x + 0.8x + 0.8x)

Answer 1

it is the first one because 100 – (0.2(3x))