this is a 5 part question based on the one set of info. please show work!

four part question*

five part question*

INVENTORY PROBLEM - CHAPTER 7 ABC, Inc. buys and sells one product. The following information is available for transactions relating to this product during the month ending May 31, Year 1. Beginning Inventory (May 1, Year 1): 50,000 units at 52.50 each 1. Assuming that ABC uses the FIFO cost flow assumption and a PERIODIC inventory system, calculate the value of the ending inventory and the cost of goods sold for the month ending May 31, Year 1. 2. Assuming that ABC uses the LIFO cost flow assumption and a PERIODIC inventory system, calculate the value of the ending inventory and the cost of goods sold for the month ending May 31, Year 1. 3. Assuming that ABC uses the average cost assumption and a PERIODIC inventory system, calculate the value of the ending inventory and the cost of goods sold for the month ending May 31, Year 1 (round the weighted average per-unit cost to the nearest penny.) 4. Assuming that ABC uses the LIFO cost flow assumption and a PERPETUAL inventory system, calculate the value of the ending inventory and the cost of goods sold for the month ending May 31, Year 1. 5. Assuming that ABC uses the average cost assumption and a PERPETUAL inventory system, calculate the value of the ending inventory and the cost of goods sold for the month ending May 31 , Year 1 (round the weighted average per-unit costs to the nearest penny.)