The answer is B, 7.
We can factor a 2 out of this:


We can't factor anything.

We can factor a 4 out of this:


We can factor an 8 out of this:

So your answer is B, 7.
I am pretty sure it is 180 degrees
It should be 35, if that is an answer choice.
Answer:

Step-by-step explanation:
Swap x and y, then solve for y.
