HELP! I can't figure out how to solve for the other missing numbers.

upply the missing dollar amounts for each of the following independent cases: Beginning Purchases Cases Cost of Goods Available for Sale Cost of Goods Sold Gross Profit A $ 1,800 $ $ 300 2,900 $ 3,000 1,400 1,800 Cost of Ending Inventory $ 1,500 1,200 1,300 B Sales Revenue Inventory $ 1,700 $ 1,100 1,900 1,200 1,100 1,900 2,000 1,050 1,800 100 1,200 1,400 mo 1,600 1,650 250 1,250 1,900 2,950 1,600