Answer:
b.
821.9 cube meters
Step-by-step explanation:
 
        
             
        
        
        
No because you don't know how many places are in the number 
ex:843 and 3257 
there are 4 places in 3257 and only 3 places in 843
        
             
        
        
        
Ok so I like to go in steps with these questions- first draw a picture and identify your variables. 
W=width
L= 3w-1
Now we know that length times width gets us area so we plug in our variables into the area equation.
200 = w(3w-1)
When you foil that equation you end up with a quadratic : 3w^2-w-200 = 0
Either factor that or use the quadratic formula to get 
w= 8.33 and w= -8
Since you can't have a negative dimension you need to use 8.33 and plug it back into your length equation.
Final answer: 
w= 8.33ft
l= 23.99ft
*Now I simplified the decimals a little bit so you end up with 199.8ft^2 for the area so just add a few decimals on here and there*
        
                    
             
        
        
        
The answer for j box is 22 and for k boxs 15
        
             
        
        
        
Answer:
y=32
Step-by-step explanation:
cross multiply
36/4 *144/y
144*8/36
=1152/36
y=32