Can you please guide me through this problem for chapter 7. Thank you. ( The last picture is supposed to be first, it is backwards.)

2-a. Of the four methods, which will result in the highest gross profit? Weighted average cost First-in, first-out Last-in, first-out Specific identification 2-b.Of the four methods, which will result in the lowest income taxes? Weighted average cost First-in, first-out Last-in, first-out Specific identification Danube.com reported the following amounts in its financial statements (in millions): Net Sales Cost of Goods Sold Beginning Inventory Ending Inventory 2015 $72,000 43,000 5,000 6,000 2014 $49,000 37,000 3,900 5,000 Required: 1. Determine the inventory turnover ratio and average days to sell inventory for 2015 and 2014. Round your intermediate and final answers to 1 decimal place.) Inventory Tumover Ratio Days to Sell 2015 times per year days 2014 times per year days Check my work Mojo Industries tracks the number of units purchased and sold throughout each accounting period but applies its invento costing method at the end of each period, as if it uses a periodic inventory system. Assume its accounting records provid the following information at the end of the accounting period, January 31. The inventory's selling price is $8 per unit. Unit Cost $2.00 Total Cost $620 Units 310 (250) 360 (150) 80 Transactions Inventory, January 1 Sale, January 10 Purchase, January 12 Sale, January 17 Purchase, January 26 900 2.50 280 3.50 Assume that for Specific identification method the January 10 sale was from the beginning inventory and the January 1 vas from the January 12 purchase. Required: . Compute the amount of goods available for sale, ending inventory, and cost of goods sold at January 31 under each the following inventory costing methods: (Round your intermediate calculations to 2 decimal places and final ans to the nearest dollar amount.) Amount of Goods Available for Sale Ending Inventory Cost of Goods Sold 2. Weighted average cost 2. First-in, first-out Last-in. first-out