39-(15z+48)/27=35
39-35=(15z+48)/27
4=(15z+48)/27
108=15z+48
108-48=15z
60=15z
z=60/15
z=4
        
             
        
        
        
Vertex is 

 and minimum value of f(x) is 12 
Hope this helps 
 
        
             
        
        
        
Answer:
3 & 1
6 & 2
9 & 3
12 & 4
Step-by-step explanation:
Hope that helps!
 
        
                    
             
        
        
        
Answer:
It's number 12
Step-by-step explanation:
I just did the math.
 
        
             
        
        
        
Answer:
the answer you are looking for is D