Please help with 12 & 32

32. Business: Economic Order Quantity In Problem 28, you noted that an auto parts retailer anticipates selling 960 brake pad sets at a uniform rate over the next year. Each time the retailer places an order for x units of brake pad sets, it is arged a flat fee of $15. Carrying costs are $8 per unit per year. Use the for- mula for the EOQ to verify the result you obtained in Problem 28