8. Steamy Speedboats has an annual demand for 1,500 speedboats. Its supplier offers quantity discounts to promote larger order quantities. The cost to place an order is $300, and the holding rate is 32% of the purchase cost. The purchase cost for each speedboat is based on the price schedule given below. Compute the following: a. optimal order quantity b. annual purchase cost c. annual holding cost d. annual order cost e. total annual inventory cost
	Order Quantity	Price per Unit
	1-50	18000
	51-100	18000
	101-150	17400
	151 and above	16800