+ meducation.com/ext/map/index.html?_cona con&external_browser-launchurahttp%253A%252F%252Flearo.liberty.edu%252Fwebapps%252Fportal%25a oblems Saved Chuck a single taxpayer, earns $77,600 in taxable income and $10,000 in interest from an investment in City of Heflin bonds. (Use the U.S. tax rate schedule Required: a. If Chuck earns an additional $40.340 of taxable incomewhat is his marginal tax rate on this income? b. What is his marginal rate if, instead, he had $40,340 of additional deductions? (For all requirements, do not round intermediate calculations. Round percentage answers to 2 decimal places.) Marginal tax rate Marginal tax rate b % + meducation.com/ext/map/index.html?_cona con&external_browser-launchurahttp%253A%252F%252Flearo.liberty.edu%252Fwebapps%252Fportal%25a oblems Saved Chuck a single taxpayer, earns $77,600 in taxable income and $10,000 in interest from an investment in City of Heflin bonds. (Use the U.S. tax rate schedule Required: a. If Chuck earns an additional $40.340 of taxable incomewhat is his marginal tax rate on this income? b. What is his marginal rate if, instead, he had $40,340 of additional deductions? (For all requirements, do not round intermediate calculations. Round percentage answers to 2 decimal places.) Marginal tax rate Marginal tax rate b %