The price of domestic water for residents in Wuhan is 0.70 yuan per cubic meter, the sewage treatment fee is 0.80 yuan per cubic meter, and the water resource fee is 0.01 yuan per cubic meter. Xiaohui's family used 12 cubic meters of water this month, how much should they pay for water this month?
武汉市居民生活用水的水价是每立方米0.70元，污水处理费每立方米0.80元，水资源费每立方米0.01元．晓慧家本月用水12立方米，则本月应交水费多少元．
<gadget id="calculator">0.7 + 0.8 + 0.01</gadget>
<output>1.51</output>

<gadget id="calculator">1.51 * 12</gadget>
<output>18.12</output>

<result>18.12</result>