What is the total area of the four walls of a rectangular room 4 meters long by 5.5 meters wide by 3 meters high? ignore all doors and windows?

What is the surface area of a cube that has a side length of 8 mm? use the formula is sa=6^2, where sa is the surface area of the cube and s is the length of each side. 48mm^2 96mm^2 384mm^2 2,304mm^2