The taxi fare standard is: within 3 kilometers (including 3 kilometers), it is charged at 7 yuan, and for the part exceeding 3 kilometers, it is charged at 1.5 yuan for every 1 kilometer, and an additional 1 yuan is required for each ride. Fuel surcharges for money. Xiao Ming took a taxi to the park on Sunday. When he got off the taxi, the odometer showed that he had traveled 11 kilometers. How much should Xiao Ming pay for the taxi?
出租车的收费标准是：3千米以内(含3千米)按7元计费，超过3千米的部分，每超过1千米按1.5元计费，而且每乘一次需多付1元钱的燃油附加费．星期天小明乘出租车去公园，下车时出租车的里程表显示行驶了11千米，小明应付出租车费多少元？
<gadget id="calculator">11 - 3</gadget>
<output>8</output>

<gadget id="calculator">8 * 1.5</gadget>
<output>12</output>

<gadget id="calculator">7 + 12 + 1</gadget>
<output>20</output>

<result>20</result>