can you exaplain how you got each answer please

Required information [The following information applies to the questions displayed below] Laker Company reported the following January purchases and soles dota for its only product. For specific identificotion, ending inventory consists of 280 units from the January 30 purchase, 5 units from the January 20 purchase, and 15 units from beginning inventory. ssume the perpetual inventory system is used. equired: 1. Complete the table to determine the cost assigned to ending inventory and cost of goods sold using specific identification. 2. Determine the cost assigned to ending irventory and to cost of geods sold using wolghted average: 3. Determine the cost assigned to ending inventory and to cost of goods sold using FFO. 4. Determine the cost assigned to ending inventory and to cost of goods sold using LIFO. Complete this question by entering your answers in the tabs below. 2. Determine the cost assigned to ending irtventory and to cost of goods sold using weighted average. 3. Determine the cost assigned to ending inventory and to cost of goods sold using FFO. 4. Determine the cost assigned to ending inventory and to cost of goods sold using LIFO. Complete this question by entering your answers in the tabs below. Determine the cost assigned to ending inventory and to cost of goods sold using weighted average. Note: Round cost per unit to 2 decimal places. Ch 5: Need-to-know Video Assignments (i) 4 Required information