Chuck, a single taxpayer, earns $75,000 in taxable income and $10,000 in interest from an investment in City of Heflin bonds (Use the U.Stax rate schedule) Required: a. How much federal tax will he owe? b. What is his average tax rate? c. What is his effective tax rate? d. What is his current marginal tax rate? * Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Req A ReqB Regc Reg D What is his current marginal tax rate? Marginal tax 25 %