Answer:4
Step-by-step explanation:
B) -7x-2x= -20-16 
     -9x= -36 
       X= -36 /-9 
       X= 4 
 
        
             
        
        
        
Answer:
1
Step-by-step explanation:
i= -1 
 
        
             
        
        
        
-1/24 is that true?????????
        
             
        
        
        
Remember the order of operations and do what is in parenthses first. 
Take 9 to its power first, then add 2. Once you get that, take that answer to the 83721 power. 
I would give you the answer, but my calculator is saying invalid input every time I am trying to use such high exponents. Sorry :( But I hope that this helps