Wildhorse Inc uses a periodic inventory system. Its records show the following for the month of May, in which 76 units were sold. (a1) 6 Your answer is incorrect. Calculate the weighted-average unit cost. (Round answer to 3 decimal ploces, e. . 5.125.) Weighted-average unit cost \$ eTextbook and Media Attempts: 1 of 15 used (22) Calculate the ending inventory at May 31 using the FIFO, LIFO and average-cost methods. (Round answers to 0 decimal places, eg. 125.) eTextbook and Media Attempts: 0 of 15 used