Answer:
I know 4 people that are all really close friends and all have birthdays in march. 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Circunferencie can be writen also as a fuction of the diameter of the circle
C = pi*D
Where
D = circunferene diameter
Step-by-step explanation:
C = 2.pi.R = 2.R.pi 
In a circle 2.R = D 
So, 
C = pi.D
 
        
             
        
        
        
Answer:
the answer and explanation is in the picture
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