All you need to do is divide 32 by 4.
32/4= 8
So, 3*8= 24 (that is 3/4 of the cupcakes)
32-24= 8
8 is the answer.
I hope this helps!
Brainliest answer is always appreciated! 
        
                    
             
        
        
        
Lets say, for ease, that the vat can hold a total of 70 gallons (or whatever you would like to use.) Use whatever number you want, I just picked this because it gives us a lot of clean numbers. 
Now, if the inlet can fill it in 7 hours, that means that it is adding 10 gallons per hour. (70 gal/7 hours = 10 gal/hr)
For the outlet, use the same process, and you find that it drains the vat at 7 gallons per hour. 
So, if you subtract the outlet from the inlet, you get 10 - 7 = 3 gallons per hour added. 
Now just divide the size of the vat by that number, and you find your answer. 
70 gallons / 3 gallons per hour = 23 1/3 hours. 
        
             
        
        
        
Answer:
The answer I got was D 215605/1000
 
        
             
        
        
        
D. The x and y values are both negative