Answer:
D.
Step-by-step explanation:
 
        
             
        
        
        
Well, for -6d to equal -13d, d would have to be 0 to satisfy this equation
        
                    
             
        
        
        
Answer:D
Step-by-step explanation:
 
        
             
        
        
        
Answer: 256 feet
Step-by-step explanation:
Base Surface Area =  162
=  256 feet2
Lateral Surface Area =  
2×16×	√	
(	16	)2 + 202
2
=  689.30109531322 feet2
Total Surface Area = 945.30109531322 feet2
 
        
             
        
        
        
Answer:
81
Step-by-step explanation:
since b is 9 
do 9x9 which is 81