1st wall 5'long 8' wide 2nd wall 9'long 8'wide 3rd wall 2' long 4' wide tile size is 2'long 4'wide how many tile do I need

Answer 1

the first two walls are 2 tiles wide
The third wall is 1 tile wide.

Total length is 5+9+2 = 16 ft = 8 tiles long

So, if you can use the cut pieces of tile, that's 8x5 = 40 tiles

Those are some big tiles!