Answer:
Factoring in groups is like breaking it apart piece by piece and takes more steps.
Factoring the difference of two squares takes few steps and is easier.
300,022,000.
Don't quote me on that, I'm really not all that good at math.
I believe the answer would be C. 4. hope that helped
Answer:
d) A = π(
)
Step-by-step explanation:
area = π 
diameter = 18
radius (half of diameter) = 9
area = π 