Answer
Find out the at this speed how long would it take him to drive 85 miles .
To prove
Formula
[tex]Speed = \frac{Distance}{Time}[/tex]
As given
While driving on the highway, Mason put his car on cruise control at 68 miles per hour.
Here
Speed = 68 miles per hour
Distance = 85 miles
Put in the formula
[tex]68 = \frac{85}{Time}[/tex]
[tex]Time = \frac{85}{68}[/tex]
Time = 1.25 hours
Therefore it take 1.25 hours to drive 85 miles .