I may be confused by the initial post. In the US, the price on the menu is the cost of the meal only. The tax (6.5%) will be automatically added and shown on the bill. The tip (15-20% is the norm) is at your discretion, but you will need to indicate the tip amount on the credit card receipt or leave cash on the table.
If you are on the dining plan, the tax and an 18% tip is included in the plan.