Answer: 3
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
B. 1,1,2,3,5,8,13,21
Step-by-step explanation:
I calculated it logically
 
        
             
        
        
        
Answer:
35/79
Step-by-step explanation:
Assuming you can't choose the same song a second time, the probability is 35/79.
If you can choose the same song, the probability is 36/80, which reduces to 9/20.
 
        
             
        
        
        
I think 7x-y=-2 is the answer