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You find a sales receipt from a store that shows the total price as $40, and the total amount paid including sales tax as $42. a. write an equation you can use to find the sales tax rate r
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You find a sales receipt from a store that shows the total price as $40, and the total amount paid including sales tax as $42.

a. write an equation you can use to find the sales tax rate r

User Kromey
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The equation would be; 100 [(42 - 40) / 40] = r

If this helped and you have any other questions, feel free to comment on my wall. Hope this helped.
User LinusR
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