Refer to the individual rate schedules in Required: a. What are the tax liability, the marginal tax rate, and the average tax rate for a married couple filing jointly with $64,900 taxab income? b. What are the tax liability, the marginal tax rate, and the average tax rate for a single individual with $193,300 taxable income? c. What are the tax liability, the marginal tax rate, and the average tax rate for a head of household with $459,300 taxable incor 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 $64,900 taxable income? Note: Round "Average tax rate" to 2 decimal places. Married Filing Separately Head of Household Single ESTATE AND TRUST TAX RATES