What is the value of 10x+2y when x=3, y=1.2
当x=3，y=1.2时，10x+2y的值是多少
<gadget id="calculator">10 * 3</gadget>
<output>30</output>

<gadget id="calculator">2 * 1.2</gadget>
<output>2.4</output>

<gadget id="calculator">30 + 2.4</gadget>
<output>32.4</output>

<result>32.4</result>