In order to advocate saving electricity, the electric power department charges monthly electricity fees according to the following regulations: if the electricity consumption exceeds 120 kWh, it will be charged at 0.5 yuan per kWh; if it exceeds 120 kWh, it will be charged at 0.65 yuan per kWh. The electricity consumption of Li Hong's house in June is 180 kWh. How much should I pay for electricity this month?
为了倡导节约用电，电力部门按以下规定收取每月的电费：用电超过120度，按每度0.5元收费；如果超过120度，超过的部分按每度0.65元收费．李红家六月份的用电量是180度，这个月应交电费多少钱？
<gadget id="calculator">120 * 0.5</gadget>
<output>60</output>

<gadget id="calculator">180 - 120</gadget>
<output>60</output>

<gadget id="calculator">60 * 0.65</gadget>
<output>39</output>

<gadget id="calculator">60 + 39</gadget>
<output>99</output>

<result>99</result>