Calculate the 2017 total tax for Gordon Geist, a single taxpayer without dependents and no itemized deductions. He has active income of $39,000, a short-term capital gain income of $3,500 from the sale of stock, and $8,200 from book royalties. What is Gordon's average tax rato? Gordon's total gross income for the 2017 tex year is ! (Round to the nearest cent)