You're trying to help your learning coach arrange their new t.v. in the living room. The wall to place the t.v. on is 12 ft by 8 ft. The t.v. is 3 ft by 4 ft. Which equation represents the area of the wall taken up by the t.v.?
A:3+4=7ft2
B:12(3)+8(4)=area2
C:3*4=12 ft2