What is 12 • 4 / 2 + (7-5) to the second power using order of operations

Fred has a total of 62 dvd and cd. if the number of cd is three more than two times the number of dvd, how many cd does he have?

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15