Tess a single taxpayer, eams 596,000 in taxable income and $9.000 in interest from an investment in municipal bonds (tax exempt) from the city of El Paso Using the US tax rate schedule for year 2021, what is her average tax rate (rounded 2 decimal places xxxxx)? QUESTION 4 Martin, a single taxpayer, earns $5,000 per year in taxable income. What is Martin's current marginal tax rate (if he earns one more dollar) for year 20217