If i have 12 cookies and i buy then for one dollar how much is each cookie​

 " $ 0.08 " .

    → Each cookie costs $ 0.08 .

Step-by-step explanation:

1 dollar/ 12 cookie(s) ;

      =  (1/12) dollars per cookies ;

      =  ( 1 ÷ 12) dollars per cookie ;

      = 0.083333333333333 dollars per cookie;

   Round to: 0.08 dollars per cookie;

                 Write as: $ 0.08 per cookie.

     →  Each cookie costs $ 0.08 .

Hope this is helpful!

C 10% Condition.

Step-by-step explanation:

Let's Look at them one by one.

A: Large Enough sample condition.

this is met because 600 students is a good number to carry out a surwey.

B: Randomization,  600 incoming freshman are definitely random.

C: we are left with C so the answer is C.