10 points and brainliest!

my question was: what is the volume of the rectangular prism? (the rectangular prism is in the picture)

the answer i got was:

the answer is 416

step-by-step explanation:

8*10.4*5=416

i don't understand how they got 416, can someone ?

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    8*(104/10)*5-(416)=0

Step by step solution :

Step  1  :

           52

Simplify   ——

           5

Equation at the end of step  1  :

       52          

 ((8 • ——) • 5) -  416  = 0

       5          

Step  2  :

Pulling out like terms :

2.1      Pull out     416

After pulling out, we are left with :

     416 • ( 1 +( (-1) ))

Equation at the end of step  2  :

 0  = 0

Step  3  :

Equations which are always true :

3.1    Solve   0  = 0This equation is a tautology (Something which is always true)

Equation is alway true

please give me brainlest

can you post the graph?