Which of the following best represent the average rate at which a person can quickly walk
a. 3 steps per hour
b.3 steps per second
c.30 steps per minutes
d.30 steps per second

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?

How do you find principle and simple interest

We just started the introduction into circles and i have no idea how to do this.