There are 28 boxes of apples in Chunguang Store, and each box weighs 20 kilograms. If each kilogram of apples sells for 5 yuan, how much can these apples sell for?
春光商店有28箱苹果，每箱有20千克，如果每千克苹果卖5元，这些苹果能卖多少钱？
<gadget id="calculator">28 * 20 * 5</gadget>
<output>2_800</output>

<result>2_800</result>