I used 50 yuan to buy school supplies, bought 8 propelling pencils with a unit price of 3.6 yuan, and bought 12 more notebooks of the same type, and got back 6.8 yuan. How much is each notebook?
用50元购买学习用品，买了8支单价3.6元的活动铅笔，又买了12本相同的笔记本后，找回了6.8元，每本笔记本多少元？
<gadget id="calculator">3.6 * 8</gadget>
<output>28.8</output>

<gadget id="calculator">50 - 28.8 - 6.8</gadget>
<output>14.4</output>

<gadget id="calculator">14.4 / 12</gadget>
<output>1.2</output>

<result>1.2</result>