Extra Practice

The perimeter of a regular octagon is 124 inches. Find the length of each side.

Nick’s class is having a bake sale to raise money for a project. They want to raise at least $200, and they are charging $4 for each cake and spent $40 on supplies. Find out how many cakes must be sold to raise at least $200.

While at the music store, Sam bought 5 movies, all at the same price. The tax on his purchase was $4, and the total was $49. What was the price of each movie?

• A rectangle has a length that is twice the width. If it has a perimeter of 26 inches, what is the width of the rectangle? What is the length?