Apply Bike-a-thon
Keshia can ride her bike 15 miles in 90 minutes. She wants to
ride in a bike-a-thon that consists of two trail options, a 56-mile
trail or a 36-mile trail. At her current rate, how many more hours
will it take her to ride 56 miles than 36 miles? If she wants to ride
for about 4 hours, which trail should she choose?