Answer:
4x+40=120
Step-by-step explanation:
Vertical angles are congruent so you would set them equal to each other.
Answer is 120.
(Sorry if photo quality is bad. The camera on my device sucks.)
Answer:

Step-by-step explanation:
The given equation is:

It can be solved by using middle term splitting.
So,

So, the factors of
are 
Answer:
f(-1) = 0 and f(4) = 0
Step-by-step explanation:
look at graph to see what point(s) is/are intersecting the y-axis, then use the y-value of the ordered pair
Answer:
la C
Step-by-step explanation: