Answer:
b
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
21 3/4
Step-by-step explanation:
3 times 7 1/4 since the scale is 1:7 1/4. Good luck!! :)
 
        
                    
             
        
        
        
The sum of y+x, or 5+7, is rational.  This is because each integer(non fraction/decimal)is rational, it is also rational.
        
             
        
        
        
Answer: it is stretched vertically by a factor of 3 
Step-by-step explanation:i make a unit test and get 100% that is correct. 
I hope This help;)