posted by Shaylin .
Norman traveled 261 miles on a trip to bates. The trip took 4 1/2 hours. If he then drives for 1 1/2 hours to leighsville, which is another 81 miles farther, what its his average rate of travel for the entire trip?
He drives for a total of 6 hours and travels 342 miles.
342 / 6 = ?______ mph