Megan bought a fridge for $499 plus $100 delivery fee is not a proportional relationship.
        
                    
             
        
        
            
            
                What is the interquartile range of the data set? {48, 50, 65, 60, 80, 42, 45, 50, 42, 55, 45} 
                MissTica             
         
        
Order the number:
42,42,45,45,48,50,50,55,60,65,80
Mean:50
Quartile 1:45
Quartile 3:60
60-45=15. As a result, the interquartile range is 15. Hope it help!
        
                    
             
        
        
        
-4x is the slope and -12 is the y-intercept
 
        
        
        
Answer:
d
Step-by-step explanation: