2. Select all of the trips that would take 3 hours.
(Show your work and explain your reasoning.)
a. Drive 40 miles per hour between Smyrna and Atlantic City, which are 120
miles apart.
b. Running 12 miles at a speed of 4 miles per hour.
c. Take a train going 90 miles per hour from Baltimore to Washington, DC,
which are about 30 miles apart.
