When the height of a certain area increases by 100m, the temperature drops by 0.6°C. Xiaoming and Xiaohong measured the temperature at the foot of the mountain and the top of the mountain at the same time as 6°C and -1.2°C respectively. What is the height of the mountain in m?
某地区高度每增加100m，气温下降0.6℃，小明和小红分别在山脚和山顶同时测得气温分别是6℃和-1.2℃，山高多少m．
<gadget id="calculator">6 - (-1.2)</gadget>
<output>7.2</output>

<gadget id="calculator">7.2 / 0.6</gadget>
<output>12</output>

<gadget id="calculator">12 * 100</gadget>
<output>1_200</output>

<result>1_200</result>