If you would have to pay $5,000 in taxes on $50,000 taxable income and $8,000 in taxes on $60,000 taxable income, then the marginal tax rate on the additional $10,000 of income is A.- 15 percent, and...

Economic

Extracted text: If you would have to pay $5,000 in taxes on $50,000 taxable income and $8,000 in taxes on $60,000 taxable income, then the marginal tax rate on the additional $10,000 of income is A.- 15 percent, and the average tax rate is 30 percent at the $60,000 income level. B.- 30 percent, and the average tax rate is about 13 percent at the $60,000 income level. C.- 30 percent, but average tax rates cannot be determined from the information given. D.- 30 percent, and the average tax rate is 20 percent at the $50,000 income level.