What is the product of the sum of 18.2 and 11.7 multiplied by 2.5?
18.2与11.7的和乘2.5，积是多少？
<gadget id="calculator">18.2 + 11.7</gadget>
<output>29.9</output>

<gadget id="calculator">29.9 * 2.5</gadget>
<output>74.75</output>

<result>74.75</result>