mathematics question

A dothing store buys sweaters for $54.00 less 45% for buying over 50 pairs, and less a further 2832% for buying last season's style. The sweaters are then marked up to cover overhead expenses of 27% of cost and a profit of 3232% of cost. (a) What is the regular selling price of the sweaters? (b) What is the maximum amount of markdown to break even? (c) What is the rate of markdown if the sweaters are sold at the break-even price? (a) The selling price is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) (b) The amount of the markdown to break even is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) (c) The rate of markdown to break even is (Round the final answer to two decimal places as needed. Round all intermediate values to six decimal places as needed.) Seven-ninths of Jesse Black's inventory was destroyed by fire. He sold the remaining part, which was slightly damaged, for five-sevenths of its value and received $3300 (a) What was the value of the destroyed part of the inventory? (b) What was the value of the inventory before the fire? (a) The value is $ (Round to the nearest cent as needed.) (b) The value is $ (Round to the nearest cent as needed.)