Refer to the individual rate schedules in A ppendix C. Required: a. What are the tax liability, the marginal tax rate, and the average tax rate for a married couple filing jointly with $55,900 taxable income? b. What are the tax liability, the marginal tax rate, and the average tax rate for a single individual with $198,100 taxable income? c. What are the tax liability, the marginal tax rate, and the average tax rate for a head of household with $450,300 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 fling jointly with $55,900 taxable income? Note: Round "Average tax rate" to 2 decimal places. APPENDIX C 2022 Income Tax Rates INDIVIDUAL TAX RATES Married Filing Jointly and Surviving Spouse Married Filing Separately Head of Household Head of Household Single ESTATE AND TRUST TAX RATES