81.82 miles per hour.
That cannot be properly answered unless you specify how fast you are moving.
eight 60 minutes = 75 miles 75 / 7.5 = 10 miles 60 / 7.5 = 8 minutes
14 hours 44 minutes.
75 minutes = 60 minutes + 15 minutes = 1.25 hours 60 x 1.25 = 75 miles =============================> 75 miles.
11 minutes 12 seconds.
2 minutes is 1/30 of an hour (60 minutes). So 2.5 miles is 1/30 of the number of miles you would do in an hour. So your speed is 2.5*30 = 75 miles per hour.
It takes 10 hours 14 minutes 24 seconds.
Time = Distance / SpeedTime = 970/75 = 12 14/15 hours = 12 hours and 56 minutes.
If you drove non-stop at a constant speed of 75 mph, it would take about 14 hours and 40 minutes.
4 mph = 4 miles per hour = 4 miles per 60 minutes Distance in 75 minutes = 75/60 * 4 = 5 miles.
A speed of 90 miles per 75 minutes or 72 miles per 60 minutes. If you must have it in more conventional form, then 72 mph.