Question

Sam bought brushes for $8, a palette for $5, and oil paints for $15. He paid $29.82 in all. What sales tax rate did Sam pay? 0.06%

Answer 1

Sam bought for a total amount of 8 + 5 + 15 = $28.- exclusive tax rate.
Given that he paid $29.82 including tax, he paid $1.82 of taxes.

This in a percentage would be 1.82 / 28 × 100% = 6%. Therefore the tax rate is 6% (or 0.06 as an integer).