the units of Manganese Plus available for sale during the year were as follows:

Mar. 1	Inventory	23 units	@ $29	$667
June 16	Purchase	27 units	@ $31	837
Nov. 28	Purchase	44 units	@ $35	1,540
		94 units		$3,044

There are 18 units of the product in the physical inventory at November 30. The periodic inventory system is used.

a. Determine the inventory cost by the FIFO method.

b. Determine the inventory cost by the LIFO method.

c. Determine the inventory cost by the weighted average cost methods.