Answer:

Step-by-step explanation:
If you foil this equation you will get:

And by dividing it, you will get;

That is your answer!
 
        
             
        
        
        

is the answer to:

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is the answer to:

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is the answer to:

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is the answer to:

 
        
             
        
        
        
6 rows are empty.
112/7 = 16 rows
70/7 = 10 rows used.