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3 April, 20:12

Sam paid 640 for a camera at a 20% off sell how much did it cost before the 20% off

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  1. 3 April, 20:32
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    640 •.20=128

    640 + 128 = 768
  2. 3 April, 20:34
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    640=20% off

    100-20=80

    640=80%

    divide by 8 both sides

    80=10%

    times 10 both sides

    800=100%

    original price is $800
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