answer
c.)
Step-by-step explanation:
(-2x)^4 = -2x^4
which is the same as answer c.)
 
        
             
        
        
        
Answer:
10.25
Step-by-step explanation:
 
        
                    
             
        
        
        
Please find the attachment.
Let x represent the side length of the squares.
We have been given that an open box is made from an 8 by ten-inch rectangular piece of cardboard by cutting squares from each corner and folding up the sides. We are asked to find the volume of the box.
The side of box will be  and
 and  .
.
The height of the box will be  .
.
The volume of box will be area of base times height.

Now we will use FOIL to simplify our expression.


Now we will distribute x.


Therefore, the volume of the box would be  .
.
 
        
             
        
        
        
Answer:
when you do 2 over 5 exponent 5 you get 0.08. I hope this helps you.
 
        
             
        
        
        
Answer:
-8b + 9 - 5k
Step-by-step explanation:
I am assuming the blue highlighted portion is your answer, and is not a part of the initial question
(-4b + 15 - 7k) - (6 + 4b - 2k)
Combine like terms
-4b - + 4b
Negative + Positive = Negative
-4b - 4b = -8b
15 - 6 = 9
-7k - - 2k
Negative + Negative = Positive
-7k + 2k = -5k
Put them all together:
0b + 9 - 5k 
Simplify 
-8b + 9 - 5k
I got the same answer as you (just in a different order)