Answer:
2)y=6
4)36=a
Step-by-step explanation:
8y=48
/8 /8
y=6
18=a/2
*2 *2
36=a
You wanna get x by itself
The answer to the question
Clearly

corresponds to a point on the fourth "circle" in the plane.

is a rotation of 120 degrees counter-clockwise relative to the positive side of the horizontal axis, which corresponds to a clockwise turn of 360 - 120 = 240 degrees.
This means (C) is the answer.