please explain how you got the an

Annual demand for a particular halogen bulb 12,000 at a business that operates 240 days per year. The calculated EOQ is 400 bulbs. The lead time from the supplier of the bulbs is 5 working days. a) [5 points] What is the reorder point that should be used? b) [5 points] If the demand during lead time follows the empirical distribution in the following table. what is the service level when the safetv stock is 100 ? c) [5 points] What is the probability of a stock out if the ROP is 300 ? d) [5 points] For a service level of 85%, what should the safety stock be