Beginning inventory, purchases, and sales for an inventory item are as follows: Sep. 1 Beginning Inventory 22 units$11 5 Sale 17 Purchase 30 Sale 13 units 24 units 23 units $13 Assuming a perpetual inventory system and the first-in, first-out method: a. Determine the cost of the goods sold for the September 30 sale. b. Determine the inventory on September 30