Chuck, a single taxpayer, earns $80,500 in taxable income and $15.900 in interest from an investment in City of Hellin 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? SK Complete this question by entering your answers in the tabs below. Reg A Reg Reqc Reg D How much federal tax will he owe? (Do not round intermediate calculations: Round "Federal tax" to nearest whole dollar amount.) Federal tax Rega Req8 >