i need help with 1-4 please

Use the following information for the Exercises 3-7 below. (Algo) [The following information applies to the questions displayed below.] Laker Company reported the following January purchases and sales data for its only product. The Company uses a perpetual inventory system. For specific identification, ending inventory consists of 275 units from the January 30 purchase, 5 units from the January 20 purchase, and 25 units from beginning inventory. Exercise 5-3 (Algo) Perpetual: Inventory costing methods LO P1 Required: . Complete the table to determine the cost assigned to ending inventory and cost of goods sold using specific identification. Determine the cost assigned to ending inventory and to cost of goods sold using weighted average. Determine the cost assigned to ending inventory and to cost of goods sold using FIFO. Determine the cost assigned to ending inventory and to cost of goods sold using LIFO. Complete the table to determine the cost assigned to ending inventory and cost of goods sold using specificidentification. \begin{tabular}{|c|c|c|} Specific id & WelghtedAverage & FIFO LIFO \end{tabular} Determine the cost assigned to ending inventory and to cost of goods sold using weighted average. (Round cost per unit to Z decimal places.) \& specific Id: Determine the cost assigned to ending inventory and to cost of goods sold using FIFO. Determine the cost assigned to ending inventory and to cost of goods sold using LIFO