Suppose Bob earns $20,000 per year and Sue earns $100,000 a year. If a flat tax of 10 percent is imposed, Bob will pay ______ in taxes, and Sue will pay ______ in taxes. This is an example of a ______ tax.
Multiple Choice
$2,000; $10,000; progressive
$200, $1,000; flat
$2,000; $10,000; proportional
$2,000; $10,000; lump-sum