Are you trying to find n?
 
        
             
        
        
        
The area of a circle is given by

We can solve this equation for r: divide both sides by pi:

Consider the (positive) square root of both sides:

So, in your case, we have

 
        
             
        
        
        
Answer:
1/4
Step-by-step explanation:
 
        
                    
             
        
        
        
He earned 200 more dollars the 6th year than the 5th year
        
                    
             
        
        
        
Answer: 
A = 50x^2+3
B = 75
C = 55
Step-by-step explanation:

A. f(g(x))

B. g(g(3))

C. g(f(-2))
