Measure of angle 2 is 77. hope this helped.
Step-by-step explanation:

ABC = 180-120=60
ACB = 180-(40+60)=80
Therefore ECD= 80 as ACB and ECD are vertically opposite angles
the solution is A as that is where the graphs intersect each other
Answer = 9m + 4
just do 15m subtracted from 6m to get 9m and let the 4 be