2/3 x -4 = -2       add 4 to both sides
2/3 x -4 +4 = -2 +4
2/3 x = 2   
mutliply both sides by 3/2
(3/2) * (2/3) x = (3/2) * 2
x =3
 
        
             
        
        
        
Answer:
The answer is B since all parabolas have a domain of all real numbers
 
        
             
        
        
        
If you paid a total of 15.92 and also paid 1.99 per song, then you must divide the total by the cost per song.
As such 15.92/1.99 = 8 songs. :)
        
                    
             
        
        
        
You have to square it all up then add it up if you want you can use the calculator