Synergy Company began 2020 with 22,000 units of Product X in its inventery that cost $8.10 per unit and it made successive purchases of the product as follows: The company uses a periodic inventory system. On December 31, 2020, a physical count dsclosed that 18,000 units of Product X remained in inventory. Required: 1. Calculate the number and total cost of the un ts avai able for sale during 2020 . 2. Prepare calculations showing the amouns that should be assigned to the 2020 ending inventory and to cast of goods so d. ossuming: b. Weighted average cost basis. (Round the "Average cost per unit" answer to 2 decimal pl