Suppose you want to buy a great pair of designer jeans that were originally priced at $85, but are now on sale for 10% off. When you buy the jeans, you need to pay sales tax of 10% on the sales price. How much will you have to pay for the jeans? (Round your answer to two decimal places.)
10 percent off would mean the price is 90% of the original price.
A ten percent sales tax would be an additional 9%, making it 99% of the original price
85*.99=84.15