B. solve each problem.
9. Marvin took a 5-hours bicycle trip. in all,he traveled 120 kilometers.what was his avenrage rate of speed?

10. Adrian travels from lucena city to manila every saturday to visit his mother.the trip takes 3.5 hrs and he usually travels at an avergae rate of 64 km/h.how many kilomaters deos adrian travel from lucena to manile?