Afraction a / b can be expressed as a terminating decimal if b has no prime factors other than
a) 2, 3 b) 3, 5 c) 2,5 d) 2,3,5 choose from the option and show your work.

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.