I desperately need help !

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

(08.01)consider the following pair of equations: x + y = −2 y = 2x + 10 if the two equations are graphed, at what point do the lines representing the two equations intersect? (−4, 2) (4, 2) (−2, 4) (2, 4)

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees