Select the correct answer. Which equation has a unit rate greater than the unit rate of the relationship shown in the graph? A: y=9/13x
B:y=13/19x
C:y=11/16x
D:y=8/11x
E:y=7/12x

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.