Chuck, a single taxpayer, earns $77,600 in taxable income and $12,900 in interest from an investment in City of Heflin bonds. (Use the U.S. tax rate schedule.) Required: a. If Chuck earns an additional $40,000 of taxable income, what is his marginal tax rate on this income? b. What is his marginal rate if, instead, he had $40,000 of additional deductions? Note: For all requirements, do not round intermediate calculations. Round percentage answers to 2 decimal places. Answer is complete but not entirely correct. Jorge and Anita, married taxpayers, earn $157,200 in taxable income and $41,800 in interest from an investment in City of Heflin bonds. Using the U.S. for married filing jointly, how much federal tax will they owe? What is their average tax rate? What is their effective tax rate? What is their current marginal tax rate? Note: Do not round intermediate calculations. Round your answers to 2 decimal places. Answer is complete but not entirely correct