Inventory by Three Methods The units of an item avallable for sale during the vear were as follows: There are 48 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the inventory cost under each of the following methods. a. Determine the inventory cost by using the fint-in, first-out method. b. Determine the inventory cost by using the last.in, first-out method. 1 c. Determine the inventory cost by using the weigh hd average cost method. Round intermediate calcutation to cents then round final answer to the nearest whole dollar