Acircle has a radius of 6 in.

what is the exact length of an arc formed by a central angle measuring 45°?

express your answer using π .

Could somebody me with this radical simplification?

What are the solutions of the following system? y=-2x^2 y=x-2

Robert is placing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other area is 5.7 feet. the sod costs y dollars per square foot