Xiaodong asks an advertising company to make a trapezoidal billboard, the upper base is 4 meters long, the lower base is 6 meters long, and the height is 2 meters. If the advertising company costs 30 yuan per square meter to make billboards, how much will Xiaodong pay the advertising company?
小东请广告公司制作一块梯形广告牌，上底长4米，下底长6米，高2米．如果这个广告公司制作广告牌的费用为每平方米30元，那么小东要支付给这个广告公司多少元？
<gadget id="calculator">4 + 6</gadget>
<output>10</output>

<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">10 * 1 * 30</gadget>
<output>300</output>

<result>300</result>