Answer:
https://www.calculator.net/mean-median-mode-range-calculator.html
Step-by-step explanation:
use this website it helps so much
 
        
                    
             
        
        
        
Answer:
w = 10
Step-by-step explanation:
9(w - 9) -2 = -7 + 7(w -8)
Expand:
9w - 81 - 2 = -7 + 7w - 56
Rearrange:
9w - 7w = -7 - 56 + 81 + 2
2w = 20 
w = 10   
 
        
             
        
        
        
Answer:
(a) 0.2707
(b) 0.8576
Step-by-step explanation:
 
        
             
        
        
        
Yes because 
3 is x 
And 5 is why so it’s 
5 = 2 x 3 - 1
5= 6 -1
Which is 5