Answer:

Step-by-step explanation:
Gavin made 6 out of 15 shots, so the probability that Gavin's next shot will be  successful is
 
Jack made 7 out of 15 shots, so the probability that Jack's next shot will be  successful is
 
The probability that they both make their next shot successfully is

 
        
             
        
        
        
Answer:
13
Step-by-step explanation:
When we subtract a negative, it is like adding
9 -  -4 
9 +4
13
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
 
        
             
        
        
        
I believe it's four times as great : )