PLEASE PLEASE show work!!

Date 1/1 2/4 2/20 4/2 11/4 Transaction Beginning inventory Purchase Sale Quantity 1.200 2,200 2.700 3,200 2,400 Price/Cost $13 20 34 26 Purchase Sale 37 (a) Your answer is correct. Calculate average-cost per unit. (Round answer to 4 decimal places, e.g. 2.7613.) Average-cost per unit $ 21.6364 e Textbook and Media (b) Compute cost of goods sold, assuming Nash uses: (Round average cost per unit to 4 decimal places, e.g. 2.7 O decimal places, e.g. 6,548.) Cost of goods sold (a) Periodic system, FIFO cost flow $ (b) Perpetual system, FIFO cost flow $ (c) Periodic system, LIFO cost flow $ (d) Perpetual system, LIFO cost flow $ (e) Periodic system, weighted average cost flow $ (f) Perpetual system, moving-average cost flow $