Answer:
25 because the 8 values must times with 7 and will get 56. when the ninth value added , let the ninth value as y , 56+y , the new mean is 9 . so it will be like this , 56+y over 9 times with 9 
 
        
             
        
        
        
8 is greater than or equal to x
(where x = the number of tickets)
or x is less than or equal to 8
 
        
        
        
Answer:
1668.75
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Stephen has 9 trees
Alice has 21 trees
Step-by-step explanation:
<u>At the beginning:</u>
Stephen = x trees
Alice = x + 12 trees
<u>At the end:</u>
Alice = (x + 12) - 4 trees
Stephen = x + 10 trees
Total = 36
Then

Stephen - 9 trees
Alice - 9 + 12 = 21 trees
 
        
                    
             
        
        
        
Answer:
y = 3x - 8
Step-by-step explanation:
Line is passing through the points (2, - 2) & (0, - 8)
Slope of line
