If apples cost 3.75 dollars for 3 pounds , what is the cost , at the same rate , of 7 pounds of apples?
<gadget id="calculator">3.75 / 3</gadget>
<output>1.25</output>

<gadget id="calculator">1.25 * 7</gadget>
<output>8.75</output>

<result>8.75</result>