The answer to this question  is C 
        
             
        
        
        
I hope this helps, i got it from a cheat sheet online
 
        
        
        
Answer:
Step-by-step explanation:
24,000 = 24 thousands 
30,000 = 30 thousands 
3,000 = 3 thousands 
2,4000 = 2.4 thousands 
"x" years 
24 + 3x = 30 + 2.4x 
3x - 2.4x = 30 - 24 
0.6x = 6 
x = <em>10 years</em> 
 
        
             
        
        
        
Answer:
Step-by-step explanation: