please explain the proccess to finding these solutions. thank you

Question 5 of 6 > 0.25/1 Date June June June June June June 1 4 10 11 18 Description Beginning inventory Purchase Sale Sale return Purchase Purchase return Sale Purchase Quantity 40 135 110 15 55 10 65 UNIT LOST OR Selling Price $40 44 70 70 46 46 75 50 18 25 June June 28 30 (a1) Your answer is incorrect. Calculate cost per unit. (Round answer to 2 decimal places, e.8.5.25.) Weighted-average cost per unit $ Chapter 6 Homework Question 5 of 6 > 0.25/1 (a2) Calculate ending inventory,cost of goods sold, gross profit under each of the following methods. (1) LIFO. (2) FIFO. (3) Average cost. (Round average-cost method answers to 2 decimal places, e.g. 1,250.25 and other answers to o decimal places, e.g. 1,250. Use weighted-average unit cost rounded to 2 decimal places for computations.) LIFO FIFO AVERAGE-COST $ $ $ The ending inventory The cost of goods sold $ $ $ Gross profit $ $ $ e Textbook and Media Save for Later Attempts: 0 of 3 used Submit Answer Question 5 of 6 0.25/1 (a3) Calculate gross profit rate under each of the following methods. (1) LIFO. (2) FIFO. (3) Average cost. (Round answers to 1 decimal place, e.g. 51.2%.) LIFO FIFO AVERAGE-COST Gross proftrate % % % eTextbook and Media Save for Later Attempts: 0 of 3 used Submit Answer (b)