please help!!!!

Philip Neilson owns a fireworks store. Philip's fixed costs are $20,000a month, and each fireworks assortment he sells costs, on average, $15. The averege solling price for an assortinent is $48. a. The break-even point for Philp's freworks store is units. (Enter your response rounded up to the next wholo number) b. Suppose Philip decides to expand his business. His new fixed expenses will be $39,500, but the average cost for a fireworks assortment will fat to juat $10 due to Philp's Higher purchase volumes. The new break-even poimt is units. (Enter your rosponse rounded up to the next whole number.) c. At what volume level is Philip indilerent to the two capacity alternatives outined above? Philp's ind Alerence point is unats. (Enter your msponse rounded to the nearest whole number)