Find the volume of a cube whose side length is 5x^2

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

Simply 8x squared + 5(7x squared- x) - 2x =

Which table represents points on the graph of h(x) = 3√-x+2?