Step 3 is wrong. 
It should be 4/7 / 5/8
                    4/7 x 8/5
                    32/ 35
                    
        
                    
             
        
        
        
Answer:
-2
Step-by-step explanation:
7−5+3−1  
using BODMAS 
A is addition and it comes before subtraction 
7−(5+3)−1
7-8-1
then solve
7 - 9 = -2 
 
        
             
        
        
        
The answer is 888+88+8+8+8
        
             
        
        
        
Answer:
A=202
Step-by-step explanation:
A=2(wl+hl+hw)
2·(13·5+2·5+2·13)=202