Please, please, I am begging for help with this surface area problem! I am a very confused 9th grade student!?

[Blade Warrior]

For area of a flat object, it would just be length times width. While not the simplest way to do this, the easiest to understand is getting the area of each side and adding them up. Since opposite sides on a rectangular prism are the same, we really only need to figure out three sides; add them up and double it.
2[(A*B) + (A*C) + (B*C)]=Surface area
2[(4*14) + (4*7) + (14*7)]=Surface area
2[56 + 28 + 98]=Surface area
2[182]= Surface are
Surface Area = 364