The radius of a circle is half the length of the circumference.  
So multiply 12 by itself and you get 24.
The answer is C.
        
                    
             
        
        
        
Answer:
13
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:did you ever get it?
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Given 
x times by 9
Required
Write out an algebraic expression for the above.
Follow the instructions below to get the algebraic expression of the above.
1. First, write out the variable: x
2. Then write out an expression for "times by 9". This means multiply x by 9.
So, this gives x * 9.
x * 9 = 9x.
Hence, the expression for the above question is 9x