Please only answer E and F!

Please hurry!

At Dot Com, a large retailer of popular books, demand is constant at 18,700 books per year. The cost of placing an order to replenish stock is $8, and the annual cost of holding is $3.00 per book. Stock is received 15 working days after an order has been placed. No backordering is allowed. Assume 250 working days a year. a. Dot Corn's optimal order quantity is books. (Enter your response rounded to the nearest whole number.) b. The optimal number of orders per year is orders. (Enter your response rounded to the nearest whole number.) c. The optimal interval (in working days) between orders is days. (Enter your response rounded to one decimal place.) d. The demand during lead time is books. (Enter your response rounded to the nearest whole number.) e. The reorder point is books. (Enter your response rounded to the nearest whole number.) f. The inventory position immediately after an order has been placed is books. (Enter your response rounded to the nearest whole number.)