In a hypothetical economy, Musashi earns $17,000, Rina earns $34,000, and Sean earns $51,000 in annual income. The following table shows the annual taxable income and tax liability for these three single individuals. For example, Musashi, who earns $17,000, owes $5,610 in taxes. Use the tax liability figures provided to complete the following table by computing the average tax rate for Musashi, Rina, and Sean with an annual income of $17,000, $34,000, and $51,000, respectively. Taxable Income Taxable Income Tax Liability Average Tax Rate (Dollars) (Dollars) (Percent) Musashi 17,000 5,610 Rina 34,000 7,820 Sean 51,000 9,180 The income tax system for this country is .