The circular mirror below has a frame with a circumference of 28.26 inches.
9 inches
Which expression best represents the value of pi?

Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3 10x^5 x^3 5x^3 5

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Are the corresponding angles congruent? explain why or why not.