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22 September, 21:03

A textbook that Janelle needs for her psychology class cost $199 plus 7% sales tax. which of the following questions correctly calculate the final cost C for the textbook after taxes

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  1. 22 September, 21:16
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    First you need to find what the tax is. TO do that multiply. 7 by 199 to get 139.3 That means the tax is 139.3 dollars and you need to add it to the book cost for the finall answer. 199 + 139.30 = $338.3
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