Answer:
a = 2
Step-by-step explanation:
14a - 21 - 5a = -3
9a - 21 = -3
9a = -3 + 21 
9a = 18
a = 2
 
        
             
        
        
        
Answer:
2/25
Step-by-step explanation:
Just work it out
 
        
             
        
        
        
answer is the first one and the last 2
 
        
                    
             
        
        
        
Answer: The domain has to be x and the range y. But for independent and dependent variable I can't help. So srry. The picture doesn't show the work. Have a nice day :)