Answer:
total surface area Stot = 753.9816 m2
lateral surface area Slat = 351.85808 m2
top surface area Stop = 201.06176 m2
bottom surface area Sbot = 201.06176 m2
Because you can't divide 5 evenly
For this case we must algebraically rewrite the given expression. So:
x: It is the variable that represents an unknown number
"double a number" is represented as: 
"6 less than double a number" is represented as: 
So, the final expression is: 
If we want to rewrite the expression in an equivalent way, we take common factor 2:

Asnwer:

Equivalent expression: 