help please

Supply the missing dollar amounts for Clark Retailers's income statement for each of the following independent cases: Cases Purchases Cost of Goods Sold $ 400 750 $ Sales Beginning Revenue Inventory $1,000 $ 200 1.100 300 800 250 1,000 350 900 Total Ending Available Inventory $ 1,100 $ 700 1,200 450 750 450 1,050 450 Income Selling and Gross General from Profit Expenses Operations $ 600 $ 400 $ 200 350 350 0 500 300 200 450 150 300 B 900 300 C 500 700 D 600