High Tech Heaven purchased laptops for $263.50 each, less 10%. The store's rate of markup is 25% on selling price and the store's profit is 15% on cost. During a sale, the laptops were marked down and sold at break-even price.

a. What was the regular selling price of each laptop?

b. What was the sale price?

c. What was the rate of markdown offered during the sale?

AppendixLO1