In order to encourage people to save water, the charging standards of the water company are as follows: each household uses less than 5 tons (including 5 tons) of water per ton and pays 2.5 yuan per ton, and when it exceeds 5 tons, the excess part is 3.2 yuan per ton. fee. In February of this year, Li Ming's family used 2 tons of water in the first 5 days. Based on this calculation, how much will Li Ming's family have to pay for water in February this year?
为提倡人们节约用水，自来水公司收费标准如下：每户每月用水5吨以下(包括5吨)每吨按2.5元上缴水费，当超过5吨时，超过的部分每吨按3.2元上缴水费．今年二月，李明家前5天用水2吨，照这样计算，李明家今年二月份要缴水费多少元？
<gadget id="calculator">2.5 * 5</gadget>
<output>12.5</output>

<gadget id="calculator">11.6 - 5</gadget>
<output>6.6</output>

<gadget id="calculator">6.6 * 3.2</gadget>
<output>21.12</output>

<gadget id="calculator">12.5 + 21.12</gadget>
<output>33.62</output>

<result>33.62</result>