Can you please assist with the problem?

The following units are available for sale during the year: Januaryr 1 Beginning Inventory 10 units at $18 each April 3 Purchase 30 units at $20 each August 31 Purchase 28 units at $25 each September 29 Purchase 1? units at $30 each December 31 Ending Inventory 21 units a. Determine ending inventory cost by FIFO method. ll: x I). Determine ending inventory cost by LIFO method. ll: x ' c. Determine ending inyentonr cost by average cost method. In your calculations round per unit to the nearest cent. Round your answer to the nearest whole dollar. $l:X