Answer:
ok. i don't understand this so could u be more specific and tell me what's ur problem 
 
        
             
        
        
        
<span>The first part is already in squared terms. "19.25 sq ft"
Taking the measurements for the mirror 3ft and 5ft, you'd get: "15 sq ft."
Subtract that answer from the previous number to get "4.25 sq ft.
Hope this helps out a little lol :)</span>
        
             
        
        
        
Answer:
-4,5
Step-by-step explanation:
 
        
             
        
        
        
Answer:
9/10
Step-by-step explanation:
Combined usually means to add. You only add the top.
 
        
                    
             
        
        
        
Answer:
Following are the solution to this question:
Step-by-step explanation:
They provide various boxes or various objects.  It also wants objects to be distributed into containers, so no container is empty.  All we select k objects of r to keep no boxes empty, which (r C k) could be done.  All such k artifacts can be placed in k containers, each of them in k! Forms. There will be remaining  objects. All can be put in any of k boxes.  Therefore, these
 objects. All can be put in any of k boxes.  Therefore, these  objects could in the
 objects could in the  manner are organized.  Consequently, both possible ways to do this are
 manner are organized.  Consequently, both possible ways to do this are

Consequently, the number of ways that r objects in k different boxes can be arranged to make no book empty is every possible one
