Ineed with 1-8 i have no idea how to do this so it you would break to down that i can understand that would be great

30pt

1. 
18 turned into 6. That means that it's divided by 3.
So you can divide the top part, 9, in to 3, that will be 3

2.
6 turned into 18, that means that it's multiplies by 3.
So you can multiply the top part, 4, to 3, that would be 12

3. 
25 to 5 = divide 5
30 divide 5 = 6

4.
12 to 36 = multiply 3
15 multiply 3 - 45

5.
24 to 8  = divide 3
15 divide 3 = 5

6.
32 to 8 = divide 4
24 divide 4 = 6

7. 
50 to 10 = divide 5
60 divide 5 = 12

8. 
5 to 20 = multiply 4
9 multiply 4 = 36

Hope that helped!