Thomas Kratzer is the purchasing manager for the headquarters of a large insurance company chain with a central inventory operation. Thomas's fastest-moving inventory item has a demand of 6 comma 000 units per year. The cost of each unit is $102, and the inventory carrying cost is $9 per unit per year. The average ordering cost is $31 per order. It takes about 5 days for an order to arrive, and the demand for 1 week is 120 units. (This is a corporate operation, and there are 250 working days per year). a) What is the EOQ? nothing units (round your response to two decimal places). b) What is the average inventory if the EOQ is used? nothing units (round your response to two decimal places). c) What is the optimal number of orders per year? nothing orders (round your response to two decimal places). d) What is the optimal number of days in between any two orders? nothing days (round your response to two decimal places). e) What is the annual cost of ordering and holding inventory? $ nothing per year (round your response to two decimal places). f) What is the total annual inventory cost, including the cost of the 6 comma 000 units? $ nothing per year (round your response to two decimal places).