Answer:
7
Step-by-step explanation:
 
        
             
        
        
        
There should be 45 players that have played before
        
             
        
        
        
Step-by-step explanation:
-w - 11 < or = w - 5
-2w - 11 < or = -5
-2w < or = -16
w > or = -8
 
        
             
        
        
        
Answer:
2
Step-by-step explanation:
f(x)=x^2+1
now,
f(1)=1^2+1
 =1+1
 =2
 
        
             
        
        
        
Add 2 to 3 and then your answer is x>5