You have a restaurant bill of $46.32 71/2% and decide to tip your server 20%, how much is your total?

7 1/2% tax??

 46.32 x 0.075 = 3.47

46.32 + 3.47 = 49.79

49.79 x 0.20 = 9.96

49.79+9.96 = 59.75

 total bill = $59.75

NOTE: The question does not state if the tip is only on the bill or with tax included. Since the tax rate was given, I included the tax. Also, note, where I am from tips are paid based on the total bill including the tax.