step by step metthod please

A computer retailer purchased CD-ROM drives for $135 each. Overhead expenses are estimated at 35% of selling price. Required profit is 20% of the selling price. During a sale, the drives are marked down 30%. Round your final answers to two decimals. Do not include the dollar sign in the blanks below. For example, $56 input as 56. a) What was the selling price? a) What was the reduced selling price? b) What was the profit or loss per drive at the reduced selling price? (If you have a loss, input it as a negative number)