Tire company sells 6000 go cart tires per year. The ordering cost for each order is $40 and the holding cost is 30% of the purchase price of the tires per year. The purchase price is $36 per tire is fewer than 200 tires are ordered $18 per tire if 200 or more but fewer than 5000 tires are ordered and $14 per tire if 5000 or more.
A. The optimal order quantity is
B. Total annual cost of ordering optimal order size is $____