Answer:
23!
Step-by-step explanation:
529/23= 23
23 chairs and 23 rows
 
        
             
        
        
        
To write it in simplest form, you must find a common factor.
In 

, 3 is a factor of both 3 and 9
3÷3=1 and 9÷3=3
So 


 is your answer in simplest form. 
 
        
        
        
Answer: Refer to picture
Explanation: as the weeks go on, the number of sales increase. This means it has to be positively skewed, so graphs with the dots lower as it moves to the right can be knocked out
This leaves us with 2, since the rate of change in sales isn’t linear (22 -> 44 ->66) and is instead quicker at the start, it is not the straight graph, must be the curved one