In order to save water, the municipal government stipulates that if household water is within 60 cubic meters (including 60 cubic meters), it will be calculated at 1.5 yuan per cubic meter, and if it exceeds 60 cubic meters to 80 cubic meters (including 80 cubic meters), it will be calculated at 2.5 yuan. More than 80 cubic meters will be calculated at 5.5 yuan per cubic meter. The water consumption of Xiaoli's house in May was 87 cubic meters, so how much is the water fee charged by Xiaoli's house this month?
为了节约用水，市政府规定：家庭用水在60立方米以内(含60立方米)的按照每立方米1.5元计算，超过60立方米到80立方米(含80立方米)的按照2.5元计算，超过80立方米按照每立方米5.5元计算．小丽家5月份用水量为87立方米，那么小丽家本月要收缴水费多少元．
<gadget id="calculator">60 * 1.5</gadget>
<output>90</output>

<gadget id="calculator">80 - 60</gadget>
<output>20</output>

<gadget id="calculator">20 * 2.5</gadget>
<output>50</output>

<gadget id="calculator">87 - 80</gadget>
<output>7</output>

<gadget id="calculator">7 * 5.5</gadget>
<output>38.5</output>

<gadget id="calculator">90 + 50 + 38.5</gadget>
<output>178.5</output>

<result>178.5</result>