Think of it this way:
_ _ _ (3 digit number)
for the first blank you could have 7 possibilities
for the second blank you could have 6 possibilities 
for the third blank you could have 5 possibilities 
because each time you fill in a blank one number is removed from the list of possibilities 
7×6×5=210. there are 210 possibilities 
        
             
        
        
        
Trebuie sa postezi la pagina care e in romineste
L= 78 si P=256
P=2L+2W                 w e width(latime)
256=2*78+2w
256=156+2w
256-156=2 w
100=2w
w=50
        
                    
             
        
        
        
It is a straight, horizontal line!!!
        
             
        
        
        
There wouldn't be a solution: because both equations have the same slope of 3, they would be parallel to each other. The best graph to pick would be the one with two positive steep slopes that are 3 up every one to the right.
        
                    
             
        
        
        
Supplementary angles are those which sum upto 180°

Complementary are those which sum to 90°

so if you know one angle, you can find other.