please solve the following questions with explanation

Problem 6-19A Alternative cost flows-periodic LO8 Synergy Company began 2023 with 16,500 units of Product X in its inventory that cost $7.00 per unit, and it made successive purchases of the product as follows: The corpany uses a periodic inventory system. On December 31, 2023, a physical count disclosed that 12,500 units of Product X remained in inventory. Required: 1. Calculate the number and total cost of the units avallable for sale during 2023. 2. Prepare calculations showing the amounts that should be assigned to the 2023 ending inventory and to cost of goods sold, assuming: b. Weighted average cost basis. (Round the "Average cost per unit" answer to 2 decimal places.) 2. Prepare calculations showing the amounts that should be assigned to the 2023 ending inventory and to cost of goods sold, assuming: a. FIFO b. Weighted average cost basis, (Round the "Average cost per unit" answer to 2 decimal places.)