Problem 3-27 Taxes (LO4) a. A married couple earned $99,000 in 2020. How much did they pay in taxes? (Use the tax rates presented in Table 3.6.) Note: Do not round intermediate calculations. b. What was their marginal tax bracket? c. What was their average tax bracket? Note: Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places. a. Taxes b. Marginal tax rate c. Average tax rate % %