C <span>represents the unit rate
hope that helps</span>
        
                    
             
        
        
        
Answer:
C.
15 votes
Step-by-step explanation:
B= votes Billy got
K = votes Keeton got
B = 3K
B+K =20
Substitute the first equation into the second equation
3K + K =20
Combine like terms
4K =20
Divide both sides by 4
4K/4 = 20/4
K =5
Keeton got 5 votes
B = 3*K
B = 3*5
B = 15 votes
Billy got 15 votes
 
        
             
        
        
        
Answer:
Possible committee structures = 293930
Step-by-step explanation:
The combination expression is used here 
²¹C₉ = 21!/(9!(21−9)!) = 293930
 
        
             
        
        
        
Answer:
it equals x=10 so i guess it's B
Step-by-step explanation:
 
        
             
        
        
        
Answer:
28
Step-by-step explanation: