About an hour and a half on most of the US Highway system. On the German Autobahn system one hour should suffice and on a well banked race track in the right vehicle, and on a good day using the right driver, perhaps 30 minutes.
About 65 minutes.
30/85=0.36 hours (That is if you do not get stopped for speeding)!.
24.7058 hours
60X79/85=59 minutes and 15 seconds.
95/85=1 10/85 Then your answer is it takes 1 5/17 an hour.
About 1 hour and 37 minutes.
1 hour 25 minutes.
52 minutes 14 seconds.
1 hour 59 minutes.
2 hours 55 minutes.
About 51 minutes, 30 seconds
1300 mi / 85 mph = 15.29 hr = 15 hr 17.6 min