Step-by-step explanation:





So, he keeps  
 
 
        
                    
             
        
        
        
Answer:
144
Step-by-step explanation:
If you multiply 4 by 12, then add 100, you get 144 which is the area.
 
        
             
        
        
        
No mode or 43 i know the 43 sounds crazy but with math now days you never know.
        
             
        
        
        
6 because the 36 is r² where r is the radius, r² = 36; we have to isolate the r so it's by its self, so square root both sides, r = 6