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15 March, 00:29

Andrea is shopping for items for her pet sitting business because the store is having a sale where everything in the store is 5% off. Andrea buys a cat carrier for $39.99 and a cat tower for $19.99. She has a coupon for an additional 15% off on the cat tower. Before tax, Andrea estimates that her total, after discounts, will be about $54. Determine if Andrea has estimated correctly.

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  1. 15 March, 04:23
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    Given:

    cat carrier : 39.99

    cat tower: 19.99

    1st discount : 5%

    2nd discount: 15% - cat tower

    39.99 * 5% = 1.99

    39.99 - 1.99 = 38

    19.99 * (5% + 15%) = 19.99 * 20% = 3.99

    19.99 - 3.99 = 16

    38 + 16 = 54

    Andrea estimated correctly.
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