keeping in mind that vertical angles are always congruent.

 
        
             
        
        
        
Multiply top equation by -2, then add equations so b drops out....solve for a...plug in a to get b
        
                    
             
        
        
        
1) 504cm
2) 216mm
3) 666ft
4) 301.44mm
        
             
        
        
        
First, do 110-30 (You'll get 90). Then, divide 90 by 2 (You'll have 45). Finally, take 45 from 350. Your final answer should be 305.
        
                    
             
        
        
        
For this case we must divide the following expression:

And in this way we get the amount of money that each person will receive.
Then applying double C we have:

Thus, each person has 0.133x of money!
Answer:
0.133x