(x-1)(x+1)(x-3)(x+3)
x²-y² formula
Mark brainliest please
        
             
        
        
        
Step-by-step explanation:
variability = larger range
can you put your answer below
 
        
             
        
        
        
This would mean that she has been in school for about 1,000 days. Thus, we need to figure out the amount of days she would have went to school within the week. This would normally be 5 days within the 7. 
5/100 x 1000 is 714.28
When rounded to the nearest ten, it would end up at 710.
        
                    
             
        
        
        
Answer:
167.49
Step-by-step explanation:
124.99 plus 42.50
hope this helps