Answer:
$150
Explanation:
We can find the tax by multiplying his taxable income by 0.15, because that is what 15% is as a decimal because we cannot multiply by percents. We don't need to worry about the tax for amount over 7,000, because his income was not over 7,000. When we multiply 1000*0.15, we get 150. Therefore he must pay $150 in taxes for last year.