A. Pie Chart
They are often used used for comparison and contrast
.
I attached a picture down below to show you how a pie chart compares and contrasts 2 things.
Answer:

Step-by-step explanation:
Simplify:


Group same factor:

Add :

Apply the distributive law: -(a+b) = -a - b


Group same factor:

Subtract:

Add:

Group same factor:

Hence answer = 
<u><em>~lenvy~</em></u>
Answer:
This may be wrong but im guessing it is B.logarithmic
Step-by-step explanation:
Answer: x=-3/4
Step-by-step explanation:
Since we know f(x)=6, we can set it equal to the equation.
6=9+4x [subtract 9 on both sides]
-3=4x [divide both sides by 4]
x=-3/4
Answer:
Period=2pi/3
Step-by-step explanation: