The graph shows the relationship between the total cost and the number of erasers bought at the student store. Which statement is true?

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?

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)