Answer:
200 miles
Step-by-step explanation:
(Let m represent the number of miles)
60 + 15 + 0.75m = 55 + 0.85m
75 + 0.75m = 55 + 0.85m
75 - 55 + 0.75m = 55 - 55 + 0.85m
20 + 0.75m = 0.85m
20 + 0.75m - 0.75m = 0.85m - 0.75m
20 = 0.1m
20/0.1 = 0.1m/0.1
m = 200