help please. please write out if possible

10. Ben Parker, Executive Producer for Epic Productions Film Company, is trying to decide when to reorder the 35 millimeter film his photographers use for publicity photos. 35 mm film is used by the Epic photographers at a fairly constant rate, with an average demand during leadtime of 75 rolls and a variance of 25 rolls. (Ben would agree that the daily usage of 35 mm film seems to be normally distributed) The leadtime on an order of 35 mm film is 5 days, and there are 250 working days in the year. Please answer the following two questions, based on this information What is the service level implied by Ben's reorder point of 83 rolls? If a publicity photographer runs out of film, it is usually impossible to arrange a future photo session with the movie stars who are being photographed. Keeping this in mind, Ben Parker decides that he wants a service level of 95% for his 35 mm film inventory policy. What would be the reorder point for 35 mm film