There and Back

You and a friend decide to drive to Raleigh, NC on Saturday over Martin Luther King weekend to go to a concert with some friends who live there. You figure you have to reach the vicinity of Raleigh by 6 PM in order to meet your friends for dinner before the concert.

1. It's 600 miles from downtown Orlando to downtown Raleigh. You'd like to stop for lunch and gas bout noon. What does your average velocity need to be?
2. It's almost all highway driving from here to Raleigh. If you keep your speed approximately constant, what speed should your speedometer read while you are driving?
3. After you return to Orlando, what is your displacement from the time you left to go to Raleigh? What is the total distance traveled? What is your average speed and velocity?