It will take about 8 hours of total driving timeat a constant 70 mph. Your total travel time will be longer if you slow down or stop along the way.
4.57 hours
One hour
11 hours 30 minutes.
1hr 25mins
2.814 hours (rounded)
27 minutes.
1 and half hours
http://www.wolframalpha.com/input/?i=200+miles+at+70mph
1 hour 20 minutes.
2 hours 1 minute
7 hours 8 minutes.
21 hours, 25 minutes, 42.86 seconds