Please help : a dance studio charges 45$ per month , plus 30$ for registration. Willa has 210$ dollar. for how many mounth she can attend the classes.

The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)

Does the point (1, sqrt 7) lie on circle shown.

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.