After paying a 10 percent tax on all income over $3,000, a person had a net income of $12,000. What was the income before taxes?  Pick one: A) $13,300 B) $13,000 C) $12,900 D) $10,000 E) $9,000
Let x be the income over 3000   Then (x-x/10) + 3000 = 12000   =&gt; x = 10000   Therefore income before taxes = 10000 + 3000= 
<gadget id="calculator">10000 + 3000</gadget>
<output>13_000</output>
13000   Option ($13,000)
<result>B</result>
After paying a 10 percent tax on all income over $3,000, a person had a net income of $12,000. What was the income before taxes?