During the sale, Lacey pays $28 for a lawn mower. What was the original price? $

Question

Can someone help me understand this better?

Answer 1

sales are often a percentage discount, such as 20% off

so if she paid $28 at the sales price

the original price would be P where P-.2P=28

.8P=28

P=28/.8= 280/8=$35 = original Price

if the sales discount were 40% off then

P = 28/(1-.4) = 28/.6 = 280/6 = $46.67 = Original Price rounded off to nearest cent