Answer:
4(3x+2), 4(3x)+4(2), 12x+8
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Well I think it is A because domain is the x values. 
Step-by-step explanation:
So when you plug this in your calculator (mine is a ti-84 plus ce) you would hit graph. After it graphs it press Zoom, 0 to center it then press 2nd, trace which pulls up parabola menu's. Press 0 and find the left bound, right bound and then press enter which would give you x values of 2.9375 < t< 6 
At the same time I don't know if this is right. I never really excelled at parabolas just trying to help.
 
        
                    
             
        
        
        
Answer:
B
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
it is -25/18
Step-by-step explanation: