I think the answer is false
        
             
        
        
        
It is a fraction. 
For example : 50/100   ... 50 is a part on 100. 
 100 in decimal term would be 1.00 
.85 is LESS than 1.00 causing it to be a part/ or portion of 100. 
 
        
             
        
        
        
Answer:
I think that it is 9 and 10 because when you simply the number 85 it would be 9.21 which is round by 9
 
        
             
        
        
        
Hi!
Let's put in the value of a. 
10500/100
Solve
10500/100 = 105
number of security staff = 105
Hope this helps! :)
-Peredhel