Answer:
c, d and f are rational numbers
Step-by-step explanation:

(X+X)=x+9 what this mean is that when you get the answer you have to add it by nine
Answer:
Formula for Volume=4/3 π r^3
Step-by-step explanation:
Answer:
-6r+6
Step-by-step explanation:
8-(6r+2)
8-6r-2
-6r+6