Step 1
find the volume of sand
volume of sand=8*20*3------------>Volume of sand=480 in³
Volume of sand in the new terrarium=10*24*h
where 
h------------> is the <span>deep in the new terrarium
</span>remember that 
the volume of sand is the same
so
10*24*h=480----------> h=480/(10*24)-----------> h=2 in
the answer is 2 in
        
             
        
        
        
It would be the last one, to inform readers about a topic using facts and details.
        
             
        
        
        
Answer:
The number is 3
Step-by-step explanation:
Hi,
4 ( 3 + 5x) = 72
12 + 20x = 72
20x = 60
x = 3
Hope this helps :)
 
        
                    
             
        
        
        
Answer:
   infinitely many
Step-by-step explanation:
Add 12-y to both sides of the second equation to put it into standard form like the first equation:
   y +(12 -y) = (x -12) +(12 -y)
   12 = x - y . . . simplify
   x - y = 12 . . . . second equation in standard form
We see this is identical to the first equation. That means every solution of the first equation is also a solution of the second equation. There are infinitely many solutions.