Answer:
It is C) 110° I just did it on USA Testprep
The way it is written, none of them.

The "a"s cancel out.
1 is not a function. 2 is not. 3 is not. 4 and 5 are functions. 6 is not.
Answer:
C
Step-by-step explanation:
The numerator being bigger would make it an improper fraction, making it larger than one.
Answer:
C
Step-by-step explanation:
Here we have the question,
7x+4 = -19 + 5x
Now we add 19 to both sides,
7x + 4 + 19 = -19 + 19 + 5x
7x + 23 = 5x
Now we subtract 7x from both sides,
23 = -2x
We divide -2 from both sides,
x = -23/2
Now we plug this in into 2x - 14,
2(-23/2) - 14 = -23-14 = -37
Our answer is C