Distance = rate * time. (55 miles/hour) * (4 hours) = 220 miles
330 miles
40 miles.
65 miles per hour x 4 hours = 260 miles
60*12 = 720 miles
440 miles
The number of miles you would cover if you traveled for 8 hours at 70 miles per hour is a simple math problem. Simply multiply 70x8 to get an answer of 560 miles.
700/45 = 15.5 gallons
It will take about 11.5 hours to cover that 720 miles.
It will require about 10 hours of driving time to cover that 627 miles.
As many as you want to, if you're willing to keep at it. The distance you can cover is (25) x (the number of hours you keep going).
It will take about 15 hours to cover the 1000 or so miles to get to Tucson, Arizona.