Solve for d: s=d/t
please help

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the

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.

What integer is equivalent to 9 3/2