12 i took quiz I hope this helped if i am wrong i am soooooo sorry 
 
        
             
        
        
        
4y(3y + 9)
12y + 36
36 ÷ 12=x=3
        
             
        
        
        
Answer:
Hope this helps 
Step-by-step explanation:
 
        
                    
             
        
        
        
There is no overall increase or decrease in her bank account.
She spent $9.72 and later deposited the same exact amount. 
So the over increase or decrease was $0.
I hope I've helped you! If you have any more questions let me know!
        
             
        
        
        
Answer:
11.5
Step-by-step explanation:
3 x  3 5/6
3 x 23/6
=69/6
=11.5