A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 50.0 minutes at 60.0 km/h, 9.0 minutes at 95.0 km/h, and 55.0 minutes at 35.0 km/h. She also spends 35.0 minutes eating lunch and buying gas.
a. Determine the average speed for the trip.
b. Determine the distance between the initial and final cities along the route