Surface area of a cube is given by
SA=6a²
but
SA=150 in²
thus
150=6a²
solving for a we obtain:
150/6=a²
a²=25
thus
a=√25
a=5 inches
hence the side length is 5inches
        
             
        
        
        
Answer:
x^2 - 14x = 0
Step-by-step explanation:
x^2/2=7x
x^2=7x * 2
x^2=14x
x^2 - 14x = 0
 
        
             
        
        
        
Uh, so, you're median is 81 already.
Since the middle two numbers are 82 and 80, you have to add them together and then divide by 2. 
However, if you're trying to add a number in, adding 81 as it is would work as well.
Hope this helps!
        
             
        
        
        
Answer:3x-x+2=4
Step-by-step explanation: is what i got maybe wrong