How do I find tax? ​

To calculate the sales tax that is included in a company's receipts from items subject to sales tax, divide the receipts by 1 + the sales tax rate. For example, if the sales tax rate is 6%, divide the total amount of receipts by 1.06. If the sales tax rate is 7.25%, divide the total receipts by 1.0725. 

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Heres an example:

Exercises # 1:

You buy a car for 20,000 dollars and pay 5 % in tax. How much is tax?

Tax = 20,000 times 5% = 20,000 times 0.05

Tax = 20,000 times 0.05 = 1,000 dollars.

The cost with tax is 20,000 + 1000 = 21,000

Was I any helpful at all?