18 students took a group photo, the first 3 photos were 0.80 yuan each, and later they were printed at 0.62 yuan each. If each person has a photo, how much yuan should each person pay on average?
18位同学合影留念，最初3张照片每张0.80元，后来加印，每张0.62元，如果每人一张照片，平均每人应付多少元？
<gadget id="calculator">0.8 * 3</gadget>
<output>2.4</output>

<gadget id="calculator">18 - 3</gadget>
<output>15</output>

<gadget id="calculator">0.62 * 15</gadget>
<output>9.3</output>

<gadget id="calculator">2.4 + 9.3</gadget>
<output>11.7</output>

<gadget id="calculator">11.7 / 18</gadget>
<output>0.65</output>

<result>0.65</result>