Beginning inventory, purchases, and sales for an inventory item are as follows: Sept. 1 Beginning inventory 5 Sale 17 Purchase 30 Sale 22 units $25 13 units 23 units $25 23 units Assuming a perpetual inventory system and the first-in, first-out method, determine (a) the cost of the merchandise sold for the September 30 s September 30 and the mventory on a Cost of merchandise sold 589 X b. Inventory, September 30