3.50 yuan per kilogram of orange juice and 3.80 yuan per kilogram of bananas. Mom bought 4 kilograms of oranges and 5 kilograms of bananas. How much did she spend in total?
每千克桔子汁3.50元，每千克香蕉3.80元，妈妈买了4千克桔子和5千克香蕉，一共花了多少元？
<gadget id="calculator">3.5 * 4</gadget>
<output>14</output>

<gadget id="calculator">3.8 * 5</gadget>
<output>19</output>

<gadget id="calculator">14 + 19</gadget>
<output>33</output>

<result>33</result>