Problema Solution
For a sale a store decreases it's prices on all items by 25%. An item that costs $120 before the sale now costs $120-0.25($120). What is another expression for the sale price?
Answer provided by our tutors
let 'x' represent the price of an item, then the following expression represents the price of that item when the 25% off sale is taking place:
x - 0.25x