The first one is 11 and -11 because when you square them they both get 121
The second one is -7 and -1 
        
             
        
        
        
Answer:he will save 100 $
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
5/7
Step-by-step explanation:
Simplify by finding common factors and dividing both the numerator and denominator by it.
40/ 56 = 20/28(divided by 2)  = 10 / 14 (divided by 2) = 5/7 ( divided by 2)
Hope this helps.
Please mark brainiest
 
        
                    
             
        
        
        
 Answer:
The price of the watch is 280$
Step-by-step explanation:
We know that the original price is 400 dollers, and its on sale for 30%.
So we do 30% of 400 = 120$
finally we do, 400$ - 120$ = 280$
so the final price of the watch is 280$
hope this helps
 
        
             
        
        
        
Answer:
17
Step-by-step explanation: