Part t1: Puppy Food Puppy Food Inc. {PFI} sells a very popular blend of dog food. PEI is the exclusive distributor of this blend of dog food in Durham. Demand for the dog food has a Normal distribution with a mean of SDI] bags per week and a standard deviation of 50 bags per week. The store purchases dog food directly from Nutritious Sr Delicious Co. for $50 per bag, and it takes 3 weeks for delivery. Any demand that CEIIILGI' be satisfied is backordered, and PFI estimates that a backorder costs them 52 per bag per week. Assume that the opportunity cost of capital is 20% aiu'Lually and that there are 50 selling weeks in a year. 20. {1 point} What is the holding cost rate in dollars per bag per week? if your answer is not an integer, provide at least three decimal places, e.g., F501]. 21. {1.5 point) 'What is the optimal {profit maximizing} base stock level in bags of dog food for the Durham store? If your answer is not an integer, provide at least three decimal places, e.g., 1500. 22. {1 point} Suppose PFI wants to follow a policy such that 93% of their customers find the product in stock. ir'ilhat basestock level (in bags of dog food) should they use? if your answer is not an integer, provide at least three decimal places, e.g., 1500