Use Table 36 (Do not round intermediate calculations. Enter the average tox rate as a percent rounded to 1 decimal place.) o. What would be the marginal tax rate for a married couple with income of $89,300? b. What would be the average tax rate for a married couple with income of $89.300? c. What would be the marginal tax rate for an unmarried taxpayer with income of $89,3007 d. What would be the average tax rate for an unmarried taxpayer with income of $89,300? 1551 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 250 20.3%