Answer:
A the graph represents a linear function because
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x=y+4
Step-by-step explanation:
bc you add four bc it's the opposite
 
        
             
        
        
        
Answer:
With base of 3: 
With base of 9: 
Step-by-step explanation:
Use 3 and 9 as the base of the power. 

 
        
             
        
        
        
No they cant because 20 is not divisible by 75. One option that would work is 15 rows each with 5 people or vise versa. Hope this helped!