Beginning inventory, purchases, and sales for WCS12 are as follows:

Oct. 1		Inventory	310 units at $12
13		Sale	170 units
22		Purchase	360 units at $13
29		Sale	400 units

a. Assuming a perpetual inventory system and using the weighted average method, determine the weighted average unit cost after the October 22 purchase. Round your answer to two decimal places. $

b. Assuming a perpetual inventory system and using the weighted average method, determine the cost of goods sold on October 29. Round your "average unit cost" to two decimal places. $

c. Assuming a perpetual inventory system and using the weighted average method, determine the inventory on October 31. Round your "average unit cost" to two decimal places. $