Ronald wants to buy a shirt that is on

sale for 15% off the regular price. The

regular price of the shirt is p dollars.

Which expression represents the sale

price of the shirt?

A. p - 0.15p

B. p + 0.15p

C. 0.15p

D. p - 15p

Answer is A.

We take the price of the shirt and multiply it by the discount. (0.15p). That gives us how much less the shirt is.

We take that number and subtract it from the total number to find the current price.

For example, $50 shirt is 10% off. That's $5: (50*.10). We subtract 5 from 50 to see the current price: $45.