Brenda, in Problem 43, wants to consider setting up a fixed-period inventory system for the 28-ounce bottle of Super Algaecide (SA) SKU. At the beginning of the current week, D. J. Kole, the materials manager, checked the inventory level and found 55 units on-hand. There were no scheduled receipts and 25 units on back orders.

a. What is the review period (T) rounded to the next highest number?

b. What is stock replenishment level with safety stock (M)?

c. How many units should be ordered?