The fare standard for taxis in Lushun area is: 8 yuan for less than 3 kilometers (including 3 kilometers), and 2 yuan for every additional kilometer beyond 3 kilometers. How much does Xiaoming's family need to pay for taking a taxi from home to grandma's home, which is 15 kilometers away?
旅顺地区出租车的收费标准是：3千米以下(含3千米)，收费8元；超过3千米，每增加1千米，就增加2元收费．小明一家乘出租车从家到相距15千米的姥姥家，需要付车费多少元？
<gadget id="calculator">15 - 3</gadget>
<output>12</output>

<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<gadget id="calculator">24 + 8</gadget>
<output>32</output>

<result>32</result>