If you could help me out, thanks.

1) 0.5

2) 4

3) 8

Step-by-step explanation:

Well, first you need to figure out what the two numbers are:

    the square root of 9 is 3; 3/3=1, so the first number is 1

    2 times 3.14 is 6.28

Now all you have to do is find numbers that fit the specifications. One will be less than 1 (0.5). Another will be in between 1 and 6.28 (4). The last one will be after 6.28 (8).

Hope this helps you :)