How would I answer and format these two problems? I left my book at a friend's house and the internet has been of no help to me. Thank for for your time!

NOTE: THE HINTS AND CHECKS!

3. Use the information below to determine the sales revenue1 cost of goods sold and gross prot (you should report three numbers) that would be reported for the company related to the March 16 sale assuming the company uses LIFO inventory valuation and a perpetual inventory system. Check: Gross prot is a number greater than $175. (3 points). January 1: Purchased 100 units at $10 per unit. February 5: Purchased 60 units at $12 per unit. March 16: Sold 80 units for $15 per unit. 2. A company's inventory records indicate the following data for the month of May: beginning 350 units at $18 each purchase 290 units at $20 each sale 500 units at $55 each purchase 250 units at $22 each sale 300 units at $55 each purchase 240 units at $25 each If the company uses the firstin1 rst-out (F IFO) method and the perpetual inventory system, what is the amount of cost of goods sold AND ending inventory for May? Hint: COGS for the month of May is a number greater than $14,000. (2 points)