Can some one please answer the 3 questions and write them out clearly please. Thank you!

10. Yoakum Company reported the following information related to inventory and sales Units Unit Cost $20 Beginning inventory Purchase No. 1 Purchase No. 2 1,000 7,000 2,000 23 Sales 7,000 units at $38 per unit. Compute the following amounts assuming a periodic inventory Inventory Costing Cost of Goods Gross Balance Sheet Method Revenue Sold Margin Inventory FIFO LIFO