We are given the diameter of the circle, I assume. In this case, the formula of the area of the circle is expressed as A = pi d^2/4. where pi is a constant. The only option taht makes sense here is C. 6.25 in2. This should have the constant pi on it. 
        
                    
             
        
        
        
All i know is that the domain is ARN(all real numbers) for all of these.
        
             
        
        
        
Answer:
The equation representing the left table is 
y = 1.5x - 6
The equation representing the right table is 
y = -4x + 6.1
The solution to the system of equations is
(2.2, -2.7)
 
        
                    
             
        
        
        
372 is the answer. 
(9*6*3)+(10*7*3)=372