Answer:
1a: 1,000,000 
2a: 1 
3a: 6
4a: 0
5a: 1
6a: 1
7a: 9
1b: 1
2b: 1
3b: 1
4b: 1
5b: 1
6b:49
7b: 1
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
40%
Step-by-step explanation:
Subtract 1,400 by 1,000 then divide by 1,000
 
        
             
        
        
        
Answer:
Cr = 10
Step-by-step explanation:
To calculate combinations we use the nCr formula: nCr = n! / r! * (n - r)!, where n = number of items, and r = number of items being chosen at a time.
![C(n,r)=[?]](https://tex.z-dn.net/?f=C%28n%2Cr%29%3D%5B%3F%5D)




[RevyBreeze]
 
        
                    
             
        
        
        
Answer:
4/992 = 0.00403225806
Step-by-step explanation:
I hope this helps!!
 
        
             
        
        
        
Answer:
25
Step-by-step explanation:
Divide 500/20