2(5*10)+2(10*4)+2(5*4)=
2(50)+2(40)+2(20)=100+80+40=
220 cm^2 
I found the answer by finding the areas of the 3 different sides, multiplying each area by 2 since each side has another side that is equal on a rectangular prism, then adding all of them together.
 
        
             
        
        
        
Answer:
6.006481e+28
Step-by-step explanation:
hope it helped
 
        
                    
             
        
        
        
The least common denominator is 36
        
                    
             
        
        
        
I think that C and D are the correct answers
        
             
        
        
        
Answer:
Step-by-step explanation:
30 meters