5x-y=7
-y=-5x+7
y=5x-7
f(x)=5x-7
        
             
        
        
        
Answer:
1) I got 2/e 
2) I got 2/3
Explanation:
I uploaded the work I did, hopefully it shows up. I thought that would be more helpful than trying to explain it completely.
For 1, use the quotient rule and simplify.
For 2, use chain rule.
 
        
             
        
        
        
Interesting 
the question please?
        
             
        
        
        
Concepts of World City includes geographical dispersal of economic activities, increase the number of share for global firms, improvement of firms such as accounting, legal, public relations, programming, telecommunications, enhancement of production, maintain economic stability and improvement of the global network of affiliates.