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Mathematics, 15.10.2019 22:50 peytondavis2424

State sales tax y is directly proportional to retail price x.
an item that sells for 150 dollars has a sales tax of 12.32 dollars.

find a mathematical model that gives the amount of sales tax y in terms of the retail price x.
what is the sales tax on a 260 dollars purchase?

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State sales tax y is directly proportional to retail price x.
an item that sells for 150 doll...
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