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Using Table 3.6, calculate the marginal and average tax rates for a single taxpayer with the following incomes: (Do not round intermediate calculations. Round your answers to 2 decimal places.) Income Marginal Tax Rate % a. $ b. $ C. $ Average Tax Rate % % % 20,000 50,000 300,000 3,000,000 % % d. $ % % TABLE 3.6 Personal tax rates, 2018 Taxable income ($) Married Taxpayers Filling Joint Returns $0-$19,050 $19,051-$77,400 $77,401-$165,000 $165,00 1-$315,000 $315,001-$400,000 $400,001-$600,000 $600,001 and above Single Taxpayers $0-$9,525 $9,526-$38,700 $38,701-$82,500 $82,501-$157,500 $157,501-$200,000 $200,001-$500,000 $500,001 and above Tax Rate (%) 10 12 22 24 32 35 37