Answer:
A. 
Step-by-step explanation:
The third order polynomial is factored herein:


Which represents answer A.
X=6 and y=-9. Not sure if y is correct since I kind of rushed but I hope this helps!
Answer:
geometric (so it's a 1:3 ratio I believe)
Step-by-step explanation:
you're multiplying by 3 each time
-2/10 which equates to -1/5
Answer:
C
Step-by-step explanation:
since there cant be technically half of someone (i hope not) the domain has to be "whole numbers". hours can be split, so they are "all numbers". well, looking at it again, it is C, since the others can not possibly be correct.