small commodity wholesale store stipulates that if you buy no more than 10 towels at a time, the price of each towel is 3 yuan; A certain unit purchased 48 towels at a time, how much should I pay?
某小商品批发店规定：如果一次购买毛巾不超过10条，每条售价3元；如果超过10条，那么超过部分每条打9折．某单位一次购买了48条毛巾，应付多少元？
<gadget id="calculator">3 * 10</gadget>
<output>30</output>

<gadget id="calculator">48 - 10</gadget>
<output>38</output>

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">38 * 3 * (9/10)</gadget>
<output>513/5 = around 102.6</output>

<gadget id="calculator">30 + (513/5)</gadget>
<output>663/5 = around 132.6</output>

<result>663/5 = around 132.6</result>