The answer is Area= 50.265 and the circumference is 25.133 
        
                    
             
        
        
        
Answer: option c.
Step-by-step explanation:
Option a, b and d are linear equations because they are in the form of y = mx + c which is a straight line.
 
        
             
        
        
        
12 x 6 x 3 = 216
Volume = 216 cm cubed
216/0.03 = 7200
Answer = 7200 pencils
Hope it helped :)