Question 1: solve problem 13.7 parts a), b), and c) given in the textbook. Show and present all calculations in detail.

Question 2: what is safety stock? What does safety stock provide safety against?

Question 3: explain the key differences between fixed-period inventory system and quantity discount system.

Problems 12.7-12.40 relate to Inventory Models for Ind . 12.7 William Beville's computer training s Richmond, stocks workbooks with the following characterict Independent De school, in oe 19,500 units/year Demand D Ordering cost S Holding cost H $25/order $4/unit/year -a) Calculate the EOQ for the workbooks. b) What are the annual holding costs for the workbooks? What are the annual ordering costs? Px