12/3= 4 <-- This equation shows that one box will benefit 4 children.
24/4=6 <-- This equation shows how many boxes will benefit 24 children.
Therefore, Raymond should buy 6 boxes.
        
             
        
        
        
Answer:
Length: 116
Width: 21
Step-by-step explanation:
Let's say that the width of carpet is x. If the length of the carpet is 95 inches more than the width, then let's say that the width is x + 95. 
Since we are solving for the perimeter, you have to multiply the width and the length(x and x + 95) by two. 
So, 
2x + 2x + 190 = 274. 
Simplify this and you get:
4x= 274 - 190
4x = 84
x= 21
So, the width is 21. This means that the length is 21 + 95. 
21 + 95 = 116