certain place charges gas fees according to the following regulations: 1. The gas used per month is calculated by the whole cubic meter; 2. If the gas used in the month does not exceed 24 cubic meters, the gas fee is charged at 0.9 yuan per cubic meter; A fee of 2.0 yuan per cubic meter. It is known that family A pays 9.6 yuan more for gas than family B this month, so how much does family A pay for gas?
某地按以下规定收取煤气费：1每月所用煤气按整立方米计算；2若该月用煤气不超过24立方米，按每立方米0.9元收费，若超过24立方米，超过部分按每立方米2.0元收费．已知本月甲家比乙家多交煤气费9.6元，则甲家交了煤气费多少元．
<gadget id="calculator">0.9 * 24</gadget>
<output>21.6</output>

<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">21.6 + 6</gadget>
<output>27.6</output>

<result>27.6</result>