According to the Original Tipping​ Page, www.tipping.org, it is appropriate to tip waiters and waitresses ​15%-​20% of the​ pre-tax restaurant bill. The​ Leeseburgs' dinner costs $46.75 before​ tax, and the tax rate is 3%.

​a) What is the tax on the​ Leeseburgs' dinner?

​b) If the Leeseburgs decide to tip ​19% of the​ pre-tax bill, how much is the​ tip?

​c) What is the total cost of the dinner including the tax and​ tip?