Please help me fix "B" and "E". Will give thumbs up. Please show work

PA 11-6 (Algo) Anvil's Works requires on average... Anvils Works' requires, on average, 3,000 tons of aluminum each week, with a standard deviation of 700 tons. The lead time to receive its orders is 10 weeks. The holding cost for one ton of aluminum for one week is $10. It operates with a 0.98 in-stock probability. Use Table 11.5. Answer is complete but not entirely correct. (Round your answer to nearest integer.) On average, how many tons does it have on order? a. 30,000 tons (Round your answer to nearest integer.) On average, how many tons does it have on hand? b. 3 tons (Round your answer to nearest integer.) If its average inventory was 4,500 tons, what would be its average holding cost per week? c. $ 45,000 per week (Round your answer to 2 decimal places.) If its average inventory was 12,000 tons, what would be its average holding cost per ton of aluminum? d. $ 40.00 per ton (Round your answer to 4 decimal places.) e. Suppose its on-hand inventory is 5,175 tons, on average. What in-stock probability does it offer to its customers? 2.2290