Answer:
A. 
Step-by-step explanation:
We are given the functions f(x) and g(x) as,


It is required to find the function ( f+g ) i.e. ( f+g ) (x)
So, 
i.e. 
Hence, we get that
.
So, the first option is correct.
To find out, graph them, analyze, and check.
Graph them.
You get the graph below.
Check the answers.
It looks like B matches.
So, the answer is B.
Input each points. (x,y) for each equation to find out if the system of equations are equivalent.
Point (-3,4) is a solution of this system of equations.
Point (-2,-6) isn't a solution of this system of equations.
Point (-4,3) is a solution of this system of equations.
It would be 60 degrees because compliment means 90 degrees. In order to find m<CBD, you would need to subtract 30 degrees from 90 degrees which would equal 60 degrees. 90-30=60