Question 1046907
85+0.15m < 60+0.25m
25 < 0.10m flip the equation so that the m is on the left and divide:
m > 250 
------------------
Check:
85+0.15(250) = 122.50
60+0.25(250) = 122.50 
So every mile over 122.50 miles you pay
With A 0.15
With B 0.25
Thus, A is cheaper over 122.5 miles
:
John