4. Use the following information to compute values for each of the following items. Net Farm Income Average Equity Average Asset Value Interest Expense Total Revenue Opportunity Cost of Labor Opportunity Cost of Management Family Living Expenses $ 16,000 $ 8,000 $ 20,000 S 40,000 $ 220,000 $ 300,000 S 11,000 Income and Social Security Taxes $40 $ 115,000 Opportunity Cost of Capital 10% a) Rate of return on assets b) Rate of return on equity c) Operating profit margin ratio d) Change in equity e) Return to labor and mmuu