The starting price of a taxi of a certain brand (within 3 kilometers) is 5 yuan, and the fare is 1.2 yuan per kilometer for more than 3 kilometers and within 7 kilometers, and 50% for each kilometer above 7 kilometers. If you take this taxi for 10 kilometers, how much should you pay for the fare?
某品牌出租车起步(3千米以内)价是5元，超过3千米而在7千米以内，每千米按1.2元计费，7千米以上部分，每千米加价50%．如果你乘座这辆出租车10千米，应付车费多少元？
<gadget id="calculator">7 - 3</gadget>
<output>4</output>

<gadget id="calculator">4 * 1.2</gadget>
<output>4.8</output>

<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">10 - 7</gadget>
<output>3</output>

<gadget id="calculator">1.2 * (3/2) * 3</gadget>
<output>5.4</output>

<gadget id="calculator">5 + 4.8 + 5.4</gadget>
<output>15.2</output>

<result>15.2</result>