Edward earned 4 dollars for each lawn he mowed. If he had 17 lawns to mow, but forgot to mow 9 of them, how much money did he actually earn?
<gadget id="calculator">17 - 9</gadget>
<output>8</output>

<gadget id="calculator">4 * 8</gadget>
<output>32</output>

<result>32</result>