Please answer the blanks. Thank you

Periodic Inventory Using FIFO, LIFO, and Weighted Average Cost Methods

The units of an item available for sale during the year were as follows:

Jan. 1	Inventory	12	units at $38	$456
Aug. 13	Purchase	15	units at $41	615
Nov. 30	Purchase	20	units at $43	860
Available for sale		47	units	$1,931

There are 19 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the inventory cost using the (a) first-in, first-out (FIFO) method; (b) last-in, first-out (LIFO) method; and (c) weighted average cost method (round per-unit cost to two decimal places and your final answer to the nearest whole dollar).

a.	First-in, first-out (FIFO)	$
b.	Last-in, first-out (LIFO)	$
c.	Weighted average cost	$