please i need answer with explean

Chapter 7 Inventorie PE 7-5A Periodic inventory using FIFO, LIFO, and weighted average cost meth The units of an item available for sale during the year were as follows: Jan. 1 Aug. 7 Dec. 11 Available for sale Inventory Purchase Purchase 15 units at $4,000 $ 60,000 21 units at $4,600 96,600 18 units at $5,100 91,800 54 units $248,400 There are 17 units of the item in the physical inventory at December 31. 4 inventory system is used. Determine the inventory cost using (a) the first-in, fir method; (b) the last-in, first-out (LIFO) method; and (c) the weighted average PE 7-5B Periodic inventory using FIFO, LIFO, and weighted average cost meth The units of an item available for sale during the year were as follows: Jan. 1 Inventory Aug. 13 Purchase Nov. 30 Purchase Available for sale 30 units at $460 330 units at $437 50 units at $456 410 units $ 13,800 144,210 22,800 $180,810 There are 73 units of the item in the physical inventory at December 31. inventory system is used. Determine the inventory cost using (a) the first-in, fir method; (b) the last-in, first-out (LIFO) method; and (c) the weighted average PE 7-6A Lower-of-cost-or-market method