1 Problem 3-27 Taxes (LO4) a. A married couple earned $108,000 in 2020. How much did they pay in taxes? (Use the tax rates presented in Table 3.6.) (Do not round intermediate calculations.) b. What was their marginal tax bracket? c. What was their average tax bracket? (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 % %