4(5)-12
20-12
8
It would equal 8
        
                    
             
        
        
        
Answer:
I can not see the question
Step-by-step explanation:
 
        
             
        
        
        
your answer is might be wrong 460
 
        
                    
             
        
        
        
Answer:
It is pi over nine, the one that your cursor is on. Forgive me if I am wrong
Step-by-step explanation:
 
        
             
        
        
        
Answer:
It would be 78.539...
Step-by-step explanation:
So the equation for area is π r^2. We don't have the radius but we have the diameter. Since the radius is always 1/2 of the diameter, simply divide 10/2 to get this.
Now with the radius, it can simply be plugged into the equation for the answer:
π r^2,
π 5^2,
π 25
78.539...