Apples in the store are 6 yuan per kilogram, and bananas are 4 yuan per kilogram. Mom bought 5 kilograms of apples and 3 kilograms of bananas. How much does she have to pay in total?
商店苹果每千克6元，香蕉每千克4元．妈妈买了5千克苹果和3千克香蕉，一共要付多少元？
<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<gadget id="calculator">6 * 5</gadget>
<output>30</output>

<gadget id="calculator">12 + 30</gadget>
<output>42</output>

<result>42</result>