Please answer these four questions, thank you!

I.Use the following to answer the question(s) below: Shown below is the activity for one of the products of Random Creations $4,000 January 1 balance, 80 units a S50 Purchases: January 18: 40 units @$51 January 28:40 units a S52 Sales: January 12: 30 units January 22: 30 units January 31:45 units Show your computation 1) Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Random Creations uses LIFO and perpetual inventory system. 2) Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Random Creations uses LIFO and a periodic inventory system. 3) Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Random Creations uses average cost and a periodic inventory system. 4) Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Random Creations uses average cost and a perpetual inventory system