Your bill for dinner, including a 7.25% sales tax, was $49.95. You want to leave a 15% tip on the co

Your bill for dinner, including a 7.25% sales tax, was $49.95. You want to leave a 15% tip on the cost of the dinner before the sales tax. Find the amount of the tip to the nearest dollar.

Find the pretax cost:
49.95/1.0725 = 46.57

Now, add 15% tip to the pretax bill:
46.57(1.15) = $53.56