Jan. 1Inventory Aug. 7 Purchase 15 units at $32 16 units at $34 45 units There are 18 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the inventory cost using (a) the first (FIFO) method; (b) the last-in, first-out (LIFO) method; and (c) the weighted average cost method (round per unit cost to two decimal places and your final ans nearest whole dollar) Previous