Answer:
B
Step-by-step explanation:
People who volunteer usually have a strong opinion so will not represent the opinion of the average person.
Answer: C
Answer:
b. infinite solutions
Step-by-step explanation:

Therefore, the graphs are the same.
If the graphs of the equations are the same, then there are an infinite number of solutions that are true for both equations.
Answer:
-1557
Step-by-step explanation:
a+14d=143
a+12d=183
--------------------
2d= -40
d= -20
a=183+240=423
a(100th)= 423+99*-20=423-1980= -1557
I hope that help =)