Since 9 is a factor of an unknown number, that means that that number has to be a multiple of 9. If 9 is the factor of something then that something HAS to be a multiple of 9.
        
             
        
        
        
1. 20 x 8 = 160 m 
2.
January to November = 11 months.
11 flats are painted every year. 
100 flats / 11 flats per year = 9 years + 1 month 
the next time it will be painted is September 2019.
 
        
             
        
        
        
It equals 169 
Anyways thanks for points
        
                    
             
        
        
        
Answer:
0.4 is left in the box
Step-by-step explanation:
1.00 = jumbo box of cereal
1.00-60%= 1-0.6=0.4
 
        
             
        
        
        
Answer:
no
Step-by-step explanation: