It took Honghong 2.4 points to go from the first floor to the fourth floor. How many points did it take to go from the first floor to the eighth floor at the same speed?
红红从一楼到四楼用了2.4分，用同样的速度从一楼到八楼用多少分？
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">2.4 / 3</gadget>
<output>0.8</output>

<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">0.8 * 7</gadget>
<output>5.6</output>

<result>5.6</result>