If XY = 32, XZ = 30, JQ = 12, and the radius of the circumscribed circle of AXYZ is 20, find QK.

For what values of x is x2 + 2x = 24 true?

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?