Refer to the 2023 individual rate schedules in Appendix C. Required: a. What are the tax liability, the marginal tax rate, and the average tax rate for a married couple filing jointly with $71,900 taxable income? b. What are the tax liability, the marginal tax rate, and the average tax rate for a single individual with $189,800 taxable income? c. What are the tax liability, the marginal tax rate, and the average tax rate for a head of household with $466,300 taxable income Complete this question by entering your answers in the tabs below. What are the tax liability, the marginal tax rate, and the average tax rate for a married couple filing jointly with $71,900 taxable income? Note: Round "Average tax rate" to 2 decimal places. APPENDIX C 2023 Income Tax Rates INDIVIDUAL TAX RATES