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Mathematics 15 Online
OpenStudy (selena2345):

On a purchase of $500 you pay a sales tax of $21. What is the tax rate ?

OpenStudy (anonymous):

I will help yet again!!! :)

OpenStudy (anonymous):

Ok, to solve this you have to set up an equation, I will show you

OpenStudy (anonymous):

|dw:1364772434384:dw| Now, just solve :)

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