The accounting records of Carla Vista Electronics show the following data. Beginning inventory 3,000 units at $5 Purchases Sales 9,000 units at $7 10,900 units at $10 (a) Your answer is correct Calculate weighted-average unit cost. (Round answer to 3 decimal places, eg. 5.125) Weighted-average unit cost $ 6.5 eTextbook and Media Attempts: 3 of 5 used (b) Determine cost of goods sold during the period under a periodic inventory system using the FIFO method, the LIFO method, and the average-cost method. (Round answers to O decimal places, eg 125) FIFO Cost of goods sold $ eTextbook and Media - Save for Later LIFO Average-cost $ $ Attempts: 0 of 5 used Submit Answer