Question

In the united states sales tax rates vary by state. In Washington the sales tax is 6.5%. If the tax difference is 2.28, use n for the cost of an item and t to represent the amount of sales text in dollars before tax and t to represent the amount of sales tax in dollars for that idem, write an equation to show the relationship between n and t.
Please help!

~ Thank You! ~

Answer 1

6.5-2.28=4.22

tax=4.22t