Answer:
Step-by-step explanation:M angel 7 = 60 degrees, angle 1 is 60 as well because it is vertical. So your answer is A: 60. I hope my answer helped you. ;).
I thought that was all one equation lol this is very simple just plug in -3 for x
which is -3^2-3 which is -12
R=(ax+ab)/3 is the answer.
Neither train a or train b
11x-22=-11x-22
11x+11x=-22+22
22x=0
x=0/22
x=0
Then the answer is option B