T = k/R where k is the constant of variation, T=time and R=speed.
Plug in the given values:-
12 = k/60
k = 12*60 = 720
So the equation of variation is T = 720/R
At 85 mph we have
T = 720 / 85 = 8.47 hours (answer)
Well if it is a number like .933333333 you will have to round it, So now it is .93 and .93 in a fraction is 93/100
i only see numbers not no square
