In its first month of operations, Metlock, Inc. made three purchases of merchandise in the following sequence: (1) 195 units at $9, (2) 550 units at $10, and (3) 140 units at $11. (a1) Your Answer Correct Answer * Your answer is incorrect. Calculate the weighted average unit cost. (Round answer to 3 decimal places, eg. 15.225) Weighted-average unit cost $ 3975 eTextbook and Media Solution Attempts: 15 of 15 used (a2) Compute the cost of the ending inventory under the average-cost method, assuming there are 400 units on hand. (Round answer to O decimal places, eg. 1,250) The cost of the ending inventory $