Hey!
72/5 ÷ 4/5 
All you have to do is divide 72 by 4 because the denominator is the same.
72 ÷ 4 = 18
Answer ⇒ 18 catalogs
Hope this helps! :)
        
                    
             
        
        
        
Answer:
you can be my bestie
Step-by-step explanation:
hello
 
        
             
        
        
        
First, you'd find the mean of all the numbers by doing 10+9+16+5+10 = 50/5 = 10. Second, you'd subtract all values from the mean by doing 
16 - 10 = 6
10 - 10 = 0
10 - 10 = 0
10 - 9 = 1
<span>10 - 5 = 5
Lastly, finding the mean of all 5 numbers would be, 2.4! Hope this helps!! :D</span>
        
             
        
        
        
Answer:
MENSURATION. Mensuration is the mathematical name for calculating the areas, volumes, length of sides, and other geometric parts of standard geometric shapes such as circles, spheres, polygons, prisms, cylinders, cones, etc., through the use of mathematical equations or formulas.
 
        
             
        
        
        
If it looks like this it's Improper 21/20