Need help with A-D

Par Putters Company sells golf balls for $35 per dozen. The store's overhead expenses are 33% of cost and the owners require a profit of 21% of cost. (a) For how much does Par Putters Company buy one dozen golf balls? (b) What is the price needed to cover all of the costs and expenses? (c) What is the highest rate of markdown at which the store will still break even? (d) What is the highest rate of discount that can be advertised without incurring an absolute loss? (a) The cost of one dozen golf balls is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)