Exercise 6-5 Marin Inc. uses a periodic inventory system. Its records show the following for the month of May, in which 74 units were sold. Date May 1 Inventory 15 24 Explanation Units Unit Cost Total Cost 31 27 37 95 $10 $310 Purchase Purchase Total 297 12 $1,051 Calculate the weighted-average unit cost. (Round answer to 3 decimal places, e.g. 5.125.) Weighted-average unit cost LINK TO TEXT VIDEO APPLIED SKILLS VIDEO: SIMILAR EXERCISE Your answer is incorrect. Try again. Calculate the ending inventory at May 31 using the FIFO, LIFO and average-cost methods. (Round answers to O decimal places, eg, i25.) FIFO LIFO AVERAGE-COST The ending inventory at May 31s