Process: 
1. 21+24n= 7 
2. 24n= 7 - 21
3. 24n= -14 
Answ: n= -7/12
        
             
        
        
        
Answer:
He should have moved to the right.
Step-by-step explanation:
Ken moved 7 to the right which is correct because he needs to get 7º higher, but when he moved 2º to the left that would be a temperature decrease which is is incorrect.
 
        
                    
             
        
        
        
25 mph the train is accelerating at a constant rate<span />
        
             
        
        
        
Answer:
1.53
Step-by-step explanation:
because 21 minus 19.47= 1.53