Answer:
option b is the correct answer
Step-by-step explanation:
in convex polygon, none of the interior angle is greater than 180deg.
Answer:

Step-by-step explanation:
You have the following functions:

Therefore
indicates that you must divide both functions, as you can see below:

Simplify it. Therefore, you obtain:

Answer:
Step-by-step explanation:
do it your self
Answer:
z=-75/17
Step-by-step explanation:
Expand this equation:
-4z+8+4=-21z-63
-4z+21z=-63-8-4
17z=-75
z=-75/17