1 is D
2 is A
3. is B
4. is D
5. is C
        
             
        
        
        
I would go with 3 options
        
                    
             
        
        
        
72/75 in the simplist form is a 24/25 as 3 is the only the number that divides into them both for an whole answer
        
             
        
        
        
The answer is C(-2, 6).
I think you forgot the y in the first equation (with the -4.