Answer:
a) 30 squares
b) C
Explanation:
a) I got 30 on a because if you see how many squares the "Yes" side has, it has 4. You simply divide the 20 people in the "Yes" side by 4 and you have 5. Now we know how much people are in each of the squares. If we see how many squares the "No" side has, it has 6. You multiply 5 by 6 and you get 30 squares.
b) It's simply just seeing how many squares are in each one and making it match up with the graph.
Hope this helps!