Can You Actually See All The Hidden Numbers?

In every circle, there is a hidden number or figure. Your job is to figure it out!

Question 1:

 

Question 2:

 

Question 3:

Question 4:

Question 5:

 

 

 

Question 6:

 

Question 7:

 

Question 8:

 

 

Question 9:

 

 

A

N

S

W

E

R

1. 3
2. 6
3. 63
4. 2945
5. 74
6. 15
7. 29
8. 57
9. 42