The starting price of a taxi is 5 yuan within 3 kilometers, and 1.2 yuan is charged for every 1 kilometer beyond 3 kilometers. Xiao Ming's father wants to take a 9-kilometer journey, how much should he pay.
计程车3千米内起价5元，另超出3千米每行1千米收1.2元费用，小明的爸爸要乘9千米的路程，他该付多少元．
<gadget id="calculator">9 - 3</gadget>
<output>6</output>

<gadget id="calculator">1.2 * 6</gadget>
<output>7.2</output>

<gadget id="calculator">7.2 + 5</gadget>
<output>12.2</output>

<result>12.2</result>