Beginning inventory, purchases, and sales for an inventory item are as follows: Sept. 1 Beginning inventory 25 units $19 5 Sale 14 units 17 Purchase 28 units $22 30 Sale 26 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 sale and (b) the inventory on September 30, a. Cost of merchandise sold $ $ b. Inventory, September 30