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Periodic Inventory Using FIFO, UFO, and Weighted Average Cost Methods The units of an item available for sale during the year were as follows: There are 29 units of the item in the physical inventony at December 31 . The periodic inventory system is used. Determine the inventory cost using the (a) first-in, first-out (FIFO) method; (b) last-in, first-out (LIFO) method; and (c) weighted average cost method (round per-unit cost to two decimal places and your final answer to the nearest whole dollar)