Answer:
I'm newbie here 
Step-by-step explanation:
Elimination Method.
4x + 6/y = 15 → step 1 
6x - 8/y = 14 → step 2
so, 
4x + 6/y = 15 |×6| 
6x - 8/y = 14 |×4|
24x + 6/y(6) = 90
24x - 8/y(4) = 56
24x + 36/y = 90
24x - 32/y = 56
____________ _ 
 68/y = 34
 68 = 34y 
 34y = 68
 y = 2 
subsitution y = 2 to..
4x + 6/y = 15 
4x + 6/2 = 15 
4x + 3 = 15 
4x = 12
x = 3 
So, for x is 3, and for y is 2 
 
 
        
                    
             
        
        
        
Answer:
36 cm hope this helps 
Step-by-step explanation:
3×3=9×4=36
 
        
             
        
        
        
Answer:
I THINK 20 mm
Step-by-step explanation:
 
        
                    
             
        
        
        
It all depends on how big the boxes are but i would say about 5 or 6 boxes if they are big boxes
        
             
        
        
        
Answer:
25%
Step-by-step explanation:
Hopefully this is correct!