Can you please help me with the simple algebra problem?

Answer:
C 4* 10^2
Step-by-step explanation:
First step is to find the area of one wall
A = l*h
A =10*10 =10^2
The room is a square so each wall is the same. There are 4 walls
Multiply the area of one wall by 4 to get the area of all 4 walls
Area of the room = 4*A
=4*10^2