Each pen is 8.5 yuan, and each ballpoint pen is 1.5 yuan. Wang Li bought 4 fountain pens and 2 ballpoint pens. How much did she spend in total?
每只钢笔8.5元，每只圆珠笔1.5元，王丽买4支钢笔和2支圆珠笔，一共花了多少元？
<gadget id="calculator">8.5 * 4</gadget>
<output>34</output>

<gadget id="calculator">1.5 * 2</gadget>
<output>3</output>

<gadget id="calculator">34 + 3</gadget>
<output>37</output>

<result>37</result>