Perpetual inventory using FIFO Beginning inventory, purchases, and sales for Item Zeta9 are as follows: Assuming a perpetual inventory system and using the first-in,"first-out (FIFO) method, determine (a) the cost of goods sold on October 24 and (b) the inventory on October 31. a. Cost of goods sold on October 24 b. Inventory on October 31 Perpetual inventory using LIFO Beginning inventory, purchases, and sales for Item 88-HX are as follows: Assuming a perpetual inventory system and using the last-in, first-out (LIFO) method, determine (a) the cost of goods sold on July 27 and (b) the inventory on July 31. a. Cost of goods sold on July 27 b. Inventory on July 31 Periodic inventory using FIFO, LIFO, and weighted average cost methods The units of an item avallable for sale during the year were as follows: There are 17 units of the Item in the physical inventory at Deember 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)