Select the correct answer from each drop-down menu. Mike drove 40 miles from his home to his office, and he then drove back home using the same route. The average speed on his return trip was 10 miles/hour more than the average speed on his trip to the office. The total time for the trip is represented by this expression, where x is the average speed on the trip from his home to his office. 40+ 40 +10 The average speed on Mike's drive home is represented by When Mike drives at an average speed of 55 mile/hour on his way home, it takes him approximately work and back. to drive to 0.8 hour 0.7 hour