Answer:
87.92 rounded to the nearest tenth would be 87.9 because you wouldn't round up unless the number after the 9 was 5 or higher.
Step-by-step explanation:
 
        
                    
             
        
        
        
D.)  x = - 9
C.) x = 0
Hope that helps, Good luck! (:
        
             
        
        
        
Less than does mean minus, but when the question says less than some number, that number goes first. should have written 5-n