#3a. At 10am, a green car leaves a house at a rate of 60 mph. At the same time, a blue car leaves the same house at a rate of 50 mph in the opposite direction. At what time will the cars
be 330 miles apart?
#3b. Two bicyclists ride in the same direction. The first bicyclist rides at a speed of 8 mph.
One hour later, the second bicyclist leaves and rides at a speed of 12 mph. How long will the
second bicyclist have traveled when they catch up to the first bicyclist?