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Mathematics, 19.01.2021 23:20 skywil8981

Chris is planning on purchasing a new computer. He has not decided which computer to purchase yet, but he knows he will also have to factor in a sales tax of 9%. Depending on the cost (c) of the computer before tax, which TWO expressions can represent his total cost after tax? a: c + 0.9c
b: 1.09c
c: c + 0.09c
d: 1.9c

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