Teacher Wang wants to copy two different materials, one needs to be copied 12 times, and the other needs to be copied 25 times. The charging standards of the printing shop are as follows: Copy: 0.40 yuan for each copy. Quick printing: 30 copies, 0.12 yuan per copy; plus 2.00 yuan for plate making. What is the minimum cost for Mr. Wang to copy these two materials?
王老师要复制两张不同的资料，一张要复制12份，另一张要复制25份．文印店收费标准如下：复印：每复印一张0.40元．速印：30份起印，每份0.12元；另加制版费2.00元．王老师复制这两张资料最少要花多少元钱？
<gadget id="calculator">12 + 25</gadget>
<output>37</output>

<gadget id="calculator">37 * 0.12</gadget>
<output>4.44</output>

<gadget id="calculator">4.44 + 2</gadget>
<output>6.44</output>

<result>6.44</result>