Put the numbers in order...
4,5,6,6,7,8,9,9,10,10,12,12,14,15
Q1 = (6 + 6) / 2 = 12/2 = 6
Q2 (median) = (9 + 9)/2 = 18/2 = 9
Q3 = (12 + 12) / 2 = 24/2 = 12
Q3 - Q1 = 12 - 6 = 6 (this is actually the interquartile range (IQR)
        
                    
             
        
        
        
2pm minus 30 minutes minus another 30  minutes, is 1pm.
        
                    
             
        
        
        
Answer:
22.75
Step-by-step explanation:
3.5 x 6.5 = 22.75
.5 means half
x is for Multiplication 
 
        
             
        
        
        
X^1/2 ( x + 3) (x - 6)
= x^1/2 ( x^2 - 3x - 18)
= x^5/2 - 3x^3/2 - 18x^1/2
= (sqrt x)^5 - 3 (sqrt x)^3 - 18x^1/2
Option 1