1.Fact
2.Fact
3.Opinion
4.Opinion
5.Fact
6.Fact
7.Fact
8.Opinion
        
                    
             
        
        
        
Answer: It’s a Simile.
Simile is something that uses ‘like’ or ‘as’ when trying to refer to something. Other references without  ‘like’ or ‘as’ are metaphors.
Explanation:
 
        
                    
             
        
        
        
You gain capability to speak fluently and understand the language really well.
 
        
             
        
        
        
Answer:
The implicit detail is : "in another language" 
Explanation:
This is because implicit means it doesn't say something in the text directly. We know that this means that Jilly didn't understand the math, however, the text didn't directly say that.