Firstly suppose that the original price of the scarf is some number x
Then if it is 15% off then it would be x - (.15*x) or .75x
Lastly if sales tax is 6% it means that the final price is the sale price + an additional 6% of the sale price or 1.06 * the sale price. Then since the sale price = .75x we can substitute that in, therefore 1.06(.75x)
Final Answer: 1.06(.75x) where x is the original price of the scarf
