Answer:
21
Step-by-step explanation:
yeah 2+2 is 21 thanks for the very nonexistent question 
 
        
                    
             
        
        
        
is there a picture i can use to help out?
        
             
        
        
        
I’m questioning whether or not the Gacha life thing matters or not.
 
        
                    
             
        
        
        
 To find the number of days, divide the total swam by the average:
Days = 48 / 3.2 = 15
They swam for 15 days.