3. The length of a rectangle is 3 times its width. The perimeter is 16 meters. Draw a picture to represent
this situation. Write an equation to represent the situation and solve it. What is the width?
4. Suppose you live near a park that has a bike trail you like to ride. The Park Department rents a bike with
safety equipment for $5 a day. If you provide your own safety equipment, the bike rental is $3 a day. You
could buy the equipment at a sports store for $28. How many times must you use the trail to justify
buying your own safety equipment? Support your answer mathematically or graphically.