2.50 x 4 = 10
20 - 10 = 10
so his change would be $10
        
                    
             
        
        
        
The answer is 36in because that’s the pathagreom you need to use to find the answer
        
             
        
        
        
Required expression is x/9 - 7
        
             
        
        
        
To evaluate two fractions being divided, you must turn the right fraction into a reciprocal. That means you must put the bottom number at the top and then put the top number on the bottom (you’re basically switching them).
8/13 / 3/2
Now, once you turned the other number into a reciprocal, you multiply across. The top number times the other top number and do this to the bottom numbers, too.
8/13 * 3/2 = 24/26
You found the answer, 24/26. But as you can see, it’s not one of the choices. That’s because you need to simplify. 
24/26 / 2/2 = 12/13
12/13 is your answer, or choice C!
I hope this helped. Comment below if you have any questions.
        
             
        
        
        
The IQR is q1-q3! Put the numbers in order, least to greatest. then find the quartiles.