Teacher Li bought a total of 28 pens with the same price for the school and paid a total of RMB 9□.2□. Given that the numbers at □ are the same, how much is each pen?
李老师为学校一共买了28支价格相同的钢笔，共付人民币9□.2□元．已知□处数字相同，那么每支钢笔多少元．
<gadget id="calculator">98.28 / 28</gadget>
<output>3.51</output>

<result>3.51</result>