Answer:
   25 minutes 42 seconds
Step-by-step explanation:
The tub will fill at the rate of ...
   2.25 gal/min - 0.50 gal/min = 1.75 gal/min
It will take ...
   45 gal/(1.75 gal/min) ≈ 25.714 min
for the tub to fill.
You can shower for about 25 minutes 42 seconds.
 
        
                    
             
        
        
        
Answer:
46
Step-by-step explanation:
Its adding 12 each time
 
        
             
        
        
        
6(-5n+7)=0
We simplify the equation to the form, which is simple to understand 
6(-5n+7)=0
Reorder the terms in parentheses
+(-30n+42)=0
Remove unnecessary parentheses
-30n+42=0
We move all terms containing n to the left and all other terms to the right. 
-30n=0-42
We simplify left and right side of the equation. 
-30n=-42
We divide both sides of the equation by -30 to get n. 
n=1.4
Hope this helps!
 
        
                    
             
        
        
        
Answer: Grimm I just wanted to tell you this, you can have Kim back. If we never met this wouldn't have happened, I am very sorry I took her away from you, and I feel selfish..
Step-by-step explanation: I just wanted to apologize..  
I won't be on here anyway.. :^
 
        
             
        
        
        
You have not given us any of the steps that Ricardo took to simplify the 
expression, and you also haven't given us the list of choices that includes 
the description of his mistake, so you're batting O for two so far.  
Other than those minor details, the question is intriguing, and it certainly 
draws me in.
If Ricardo made a mistake in simplifying that expression, I'm going to say that
it was most likely in the process of removing the parentheses in the middle.  
Now you understand that this is all guess-work, because of all the stuff that you 
left out when you copied the question, but I think he probably forgot that the  3x  
operates on everything inside the parentheses.
He probably wrote that  3x (x-3)  is
either    3x² - 3
     or       x - 9x .
In reality, when properly simplified,
       3x (x - 3)  =  3x² - 9x .