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13 April, 02:16

Mary bought 3kg of rice at $9.90 per kg. She gave the cashier $50. How much change would she recieve

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  1. 13 April, 05:58
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    Answer: $20.30

    Step-by-step explanation:

    First we must find Mary's total.

    3kg * $9.90/kg = $29.70

    She gave the cashier $50. So we subtract the total from that to determine the amount of cash or change she should get back.

    $50 - $29.70 = $20.30
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