The answer is to your question is 1. You must replace t with 12 and then follow the rule of PEMDAS to solve this equation. 
        
                    
             
        
        
        
The answer is C. Write 3x as a difference, and Use the commutative property to reorder the terms. 
 
        
             
        
        
        
Answer: the pic iznt working
Step-by-step explanation:
 
        
             
        
        
        
The best answer would be B. 
The numbers divided are the closest to the original decimals. 
Hope this helps!