could someone plz solve these asap and explain them to me

Fill in the missing amounts in each of the elght case situations below. Each case is independent of the others. (Hint: One way to find the missing amounts would be to prepare a contribution format income statement for each case, enter the known data, and then compute the missing items.) Required: a. Assume that only one product is being sold in each of the following four case situations: Unit sold Sales Variable expenses Fixed expenses Operating income (loss) Contribution margin per unit Case #1 Case #2 Case #3 Case #4 10 000 10.000 4,000 $ 160,000 $ 150,000 $ 240,000 120,000 60,000 28,000 32,000 120,000 $ 56 000 $ 10,000 $ (64,000) $ 20$ 11 b. Assume that more than one product is being sold in each of the following four case situations (Enter "Contribution margin ratlo" in percent. Round your final answers to the nearest whole dollar amount.) Sales Vable expenses Fixed expenses Operating income less Average contration (percentage) Casa 1 Case 2 $ 400 000 5 480 000 285.000 105.000 5 7 8001 20% Case 2 Case $ 500 000 20.000 120.000 5 22.000 5 (2000) 54