I'll be happy to explain how I got any of these numbers if you ask. The problem is a little too tedious to explain everything I do.
mean = 2.825, median = 2.8, mode = 2.8 and 2.9, range = 0.7
44*6 + 50*4 = 464
464/10
The average speed for the whole trip was 46.4 mi/h.