Answer: Regressive tax
Step-by-step explanation:
Regressive tax refers to a tax regime where the tax rate reduces as the level of income increases.
In the above scenario, the income tax rates are:
$20,000 income = 2,000 / 20,000 = 10%
$30,000 income = 2,500 / 30,000 = 8.3%
$8,000 income = 4,000 / 80,000 = 5%
Notice how the tax rates reduced as the income earned went up. This is why this is a regressive tax regime.