Answer:
C, and C
Step-by-step explanation:
A' means the part that excludes A and the rest of question ask us to merge A' with A and B's common point, so the diagram that represents this is in C
on the 18th question it ask us to find the common point of A and B and then C' and mark outside of this point so the answer is C once again
Answer: 81π
Step-by-step explanation: the slice of the circle is 120 degrees, and to go all the way around the circle is 360. It takes 3 120's to go all the way around the circle. Multiplying 27 times 3 will get you 81.
Proper
Hope this helps!
