please answer them both they are not on chegg i checked and thanks

1. An automotive warehouse stocks a variety of parts that are sold at neighborhood stores. One particular part, a popular brand of oil filter, is purchased by the warehouse for $.50 each. It is estimated that the cost of order processing and receipt is $100 per order. The company uses an inventory carrying charge based on a 28 percent annual interest rate The monthly demand for the filter follows a normal distribution with mean 280 and standard deviation 77. Order lead time is assumed to be one month. Suppose that the stock-out cost is replaced with a Type 1 service objective of 95 percent. Find the Safety Stock to meet the specified service level. a. b. What is the incurred annual carrying cost of SS associated with service level applied in part (a)