Answer:
Difference between the distances traveled by Mary and Kate = 226 feet
Step-by-step explanation:
By applying Pythagoras theorem in right ΔDEF,
(DE)² + (EF)² = (DF)²
By substituting DE = 264 feet and EF = 900 feet
(264)² + (900)² = (DF)²
DF = √(69696+810000)
      = √879696
      = 937.92
Distance traveled by Kate diagonally = 938 feet
Distance traveled by Mary = DE + EF 
                                             = 264 + 900
                                             = 1164 feet
Difference between the distances traveled by Mary and Kate = DF - (DE + EF)
= 1164 - 937.92
= 226.07
≈ 226 feet 
 
        
             
        
        
        
Answer:
The mean, because the data distribution is symmetrical.
Step-by-step explanation:
Without even knowing the mean or median this can be solved. The data isn't skewed to the left nor right, so it is symmetrical. The mean is the central value of numbers so it should represent the center well.
 
        
                    
             
        
        
        
Answer:
15/100
Step-by-step explanation:
 
        
                    
             
        
        
        
5m + 4m = 72
Combine like terms.
9m = 72
Divide both sides by 9.
m = 8