Question

Isabella bought a T-shirt for $85, after sales tax is added is added the final cost was $97.75. what was the percent of sales tax?

Answer 1

97.75 - 85 = 12.75

This means the amount of tax was $12.75.

If we divide the amount of tax by the original price of the shirt, it gives us the percent of the tax:

12.75 ÷ 85 = 0.15 = 15%

Sales tax is 15%.

The key in the calculation is to divide by the original price of the shirt.