Answer:
25%
Step-by-step explanation:
1 white car + 3 black cars
4 cars in total
1 out of 4
1/4 = 0.25
25%
 
        
             
        
        
        
Statement : Val spent $ 34 for the 2 items
contradiction : Neither of the 2 items that Val bought cost more then $ 15
think about it....if neither of them cost more then 15....lets say they cost 15 each...then there is no way he spent $ 34.....he would spend at most $ 30
        
                    
             
        
        
        
1) 15
2)6
3)9
Hope this helps!
        
                    
             
        
        
        
The answer is g(x) = x^2 + 13x + 30
You can get this is multiple ways. Firstly, you could factor to find the zeroes and then move the answers to the left and redistribute the parenthesis. 
You could also put the equation into vertex form and shift the number inside the parenthesis by 4. 
Either will give you the exact same answer.