Two cities are 243 miles apart.

It takes a train 4 hours to travel between the two cities at a constant speed.
 A car travels between the two cities at a constant speed of 65 miles per hour.
Which is traveling faster, the car or the train?
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Explain your reasoning.
A driver is traveling at a constant speed on Interstate 90 outside Chicago. If she traveled from Point A to Point B in 8 minutes, did she obey the speed limit of 55 miles per hour?
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Explain your reasoning.
A traffic helicopter flew directly from Point A to Point B in 8 minutes. Did the helicopter travel faster or slower than the driver?
Explain or show your reasoning.
A cyclist rides at a constant speed of 15 miles per hour. At this speed, about how long would it take the cyclist to ride from Garden City to Dodge City, Kansas?
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Here is a map of the Missouri Botanical Garden. Clare walked all the way around the garden.
What is the actual distance around the garden?
Do not include units (feet) in your answer.
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Show your reasoning.
It took Clare 30 minutes to walk around the garden at a constant speed. At what speed was she walking?
Do not include units (feet per minute) in your answer.
Show your reasoning.