The units of Manganese Plus available for sale during the year were as follows: Mar 1 June 16 Inventory 24 units @ $30 $720 Purchase 31 units $35 1,085 Nov. 28 Purchase 46 units $38 1,748 101 units $3,553 There are 10 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. Round intermediate calculations and final answer to two decimal places