Answer:
reflection across the x axis then reflection across the y axis
Step-by-step explanation:
 
        
             
        
        
        
All it takes for a relation to be a function is for each possible first number of a pair there's only one possible second number. 
So if any of the sets has two pairs with the same first number, that one's not a function.
The last one has (3,2) and (3,5) so isn't a function.
 
        
             
        
        
        
Answer:
the volume of the tennis ball is 1436
Step-by-step explanation:
 
        
                    
             
        
        
        
T = 45m + 400
I hope this is correct it seems like the most logical explanation.
Happy Valentine’s day! I hope I helped and have a nice day! C: <3
 
        
                    
             
        
        
        
3n=27+3
you can do anything as long as you do it to both sides
3n=27+3
add like terms
27+3=30
3n=30
divide both sides by 3
n=10