-2.8, -2.6, -2.3
Hope this helped :)
        
             
        
        
        
The probability that either the girls' or boys' team gets a game is 0.85             
Step-by-step explanation:
Step 1:
Let P(G) represent the probability of girls team getting a game and P(B) represent the probability of the boys team getting a game.
P(B ∪ G) represents the probability of either girls and boys team getting a game.
P(B ∩ G) represents the probability of both girls and boys team getting a game.
Step 2:
It is given that P(G) = 0.8, P(B) = 0.7 and P(B ∩ G) = 0.65
We need to find the probability of either girls or boys team getting a game which is represented by P(B ∪ G) 
Step 3:
P(B ∪ G) = P(B) + P(G) - P(B ∩ G)
= 0.8 + 0.7 - 0.65 = 0.85
Step 4:
Answer:
The probability that either the girls' or boys' team gets a game is 0.85
 
        
             
        
        
        
Answer:
6.70m/s
Step-by-step explanation:
Speed = distance/time 
Given the winner covered a distance of 26m in time of 3.88 seconds 
Therefore 
Speed = 26/3.88
= 6.70m/s
 
        
             
        
        
        
Answer:
B
Step-by-step explanation:
Addition property of equality because you add the two terms together to get what is below 
 
        
                    
             
        
        
        
Hope this kind of puts you in the right direction