Answer:
see explanation
Step-by-step explanation:
A rational number can be expressed in the form
 where a and b are integers
 where a and b are integers
Given
- 27 =  ← in rational form
 ← in rational form
Thus - 27 is a rational number
 
        
                    
             
        
        
        
We need a picture of the lines
        
                    
             
        
        
        
Answer:
 -5.230,0000
Step-by-step explanation:
Your number in decimal form is -52,300,000 . The negative sign remains unchanged. To get to "standard" scientific notation, we move the decimal point so there is only one non-zero digit in front of the decimal point. So, -52,300,000 becomes -5.230,0000 
 
        
                    
             
        
        
        
I’m going to say the top one it seems like that would be correct