Refer to the individual rate schedules in Appendix C a. What are the tax liability, the marginal tax rate, and the average tax rate for a married couple filing jointly with $69,900 taxable income? b. What are the tax liability, the marginal tax rate, and the average tax rate for a single individual with $215,200 taxable income? c. What are the tax liability, the marginal tax rate, and the average tax rate for a head of household with $464,300 taxable income? Complete this question by entering your answers in the tabs below. Required A Required B Required C What are the tax liability, the marginal tax rate, and the average tax rate for a married couple filing jointly with $69,900 taxable income? (Do not round your intermediate computations. Round "Marginal tax rate" and "Average tax rate" to 2 decimal places and other answers to the nearest whole dollar amount.) Tax liability Marginal tax rate Average tax rate Required B>