Answer:
The definition for "nailed' in this is "to have done precisely"  
Explanation:
In this sentence it states that Ari had seen the "approval on everyone's faces" which in other words he think he had prosecuted the audition correctly which shows that the word nailed must mean "to have done precisely". Another reason is that the other definitions of nailed do not describe this correctly.
 
        
                    
             
        
        
        
I would love to apprentice in a candy-tasting factory.. that prolly isn't a thing, but still lol
 
        
             
        
        
        
What book and maybe I’ll be able to help! ^^
        
             
        
        
        
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