Answer:
it could be 2
Step-by-step explanation:
 
        
             
        
        
        
Answer:
D o you have the problem so I can see what I the question is?
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
   A.  50.24
Step-by-step explanation:
Put the value where the variable is and do the arithmetic.
   f(4) = 3.14(4²) = 3.14×16 = 50.24
 
        
             
        
        
        
Answer:
Please look at the attachment for the figure of circle with radius, diameter,circumference labelled.
AB is the diameter 
OB and OA are radii
Radius is half of the diameter or in other words diameter is double of radius.
And circumference is the outer line of the circle 

 
        
             
        
        
        
Answer:
it is 4
Step-by-step explanation:
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