Answer:
5f+6g+12
Step-by-step explanation:
Combine like terms
10f-5f = 5f
6g
8+4 = 12
5f+6g+12
 
        
                    
             
        
        
        
Hope this helps but try to do process of elimination.
        
             
        
        
        
Answer:
P(B|A)=0.25  , P(A|B) =0.5
Step-by-step explanation:
The question provides the following data:
P(A)= 0.8
P(B)= 0.4
P(A∩B) = 0.2
Since the question does not mention which of the conditional probabilities need to be found out, I will show the working to calculate both of them.
To calculate the probability that event B will occur given that A has already occurred (P(B|A) is read as the probability of event B given A) can be calculated as:
P(B|A) = P(A∩B)/P(A)
       = (0.2) / (0.8)  
P(B|A)=0.25
To calculate the probability that event A will occur given that B has already occurred (P(A|B) is read as the probability of event A given B) can be calculated as:
P(A|B) = P(A∩B)/P(B)
           = (0.2)/(0.4)
P(A|B) =0.5
 
        
             
        
        
        
Yeah the tickets is over-priced. Sure the question is not missing ?