4*10^6 = 4,000,000 1*10^4 = 10,000 4,000,000 x 10,000 = 40,000,000,000 ANSWER: 40,000,000,000 
 
        
             
        
        
        
61 because you always multiply first 60 x 0= 0 so now we have 60+1 which is 61
        
                    
             
        
        
        
1. 40 units___16 workers
 20 units___x= 8 workers
(20*16)/40=8
2. 40 units___16 workers
 25 units___x= 10 workers
(25*16)/40=10
3. 40 units___16 workers
 100 units___x= 40 workers
(100*16)/40=40
 
        
                    
             
        
        
        
4725 devided by 30 is 4725 / 30 = 157.5 ;