Question 4 Rocky Mountain Tire Center sells 20,000 go-cart tires per year. The ordering cost for each order is $40, and the holding cost is 20% of the purchase price of the tires per year. The purchase price is $20 per tire if fewer than 500 tires are ordered, $18 per tire if 500 or more-but fewer than 1,000-tires are ordered, and $17 per tire if 1,000 or more tires are ordered. a. What is the EOQ for each discount level? at $20 - 632.46, at $18 = [ Select ] at $17 - [ Select ] b. Based on choosing the minumum total cost option, how many tires should Rocky Mountain order each time it places an order? [ Select ] b. What is the total cost of this policy? [ Select ]