The charging standard for the city is as follows: 5 yuan within 3km; 1.4 yuan per kilometer for more than 3km (less than 1km is calculated as 1km). Uncle Li took a rough car to the mall 19.8km away from home. How much should he pay for the fare?
其市出用车收费标准如下：3km以内5元；超过3km，每千米1.4元(不足1km按1km计算)．李叔叔乘出粗车去离家19.8km远的商城．他应付车费多少钱？
<gadget id="calculator">17 * 1.4</gadget>
<output>23.8</output>

<gadget id="calculator">23.8 + 5</gadget>
<output>28.8</output>

<result>28.8</result>