Use Table 3.6. (Do not round intermediate calculations. Enter the average tax rate as a percent rounded to 1 decimal place.) a. What would be the marginal tax rate for a married couple with income of $89,800? average tax rate for a married couple with income of $89,800? b. What would be the c. What would be the marginal tax rate for an unmarried taxpayer with income of $89,800? d. What would be the average tax rate for an unmarried taxpayer with income of $89,800? a. Marginal tax rate for a married couple % b. Average tax rate for a married couple % C. % Marginal tax rate for an unmarried taxpayer d. Average tax rate for an unmarried taxpayer % TABLE 3.6 Personal tax rates, 2018 Taxable Income ($) Single Taxpayers Married Taxpayers Filing Joint Returns $0-$19,050 $0-$9,525 $9,526-$38,700 $19,051-$77,400 $38,701-$82,500 $82,501-$157,500 $157,501-$200,000 $77,401-$165,000 $165,001-$315,000 $315,001-$400,000 $400,001-$600,000 $600,001 and above $200,001-$500,000 $500,001 and above Tax Rate (%) 10 12 22233 24 35 37