2 divided by18 = 0.1111111111111111
1656
5
45
0.6667
Yes 360/18 = 20
4
2/12 = m/18 ie 12 x m = 2 x 18 ...
There are (exactly) 3 feet per yard; therefore, the dimension of the room are 8 yd X 6 yd X 3 yd. Wall paper is not customarily used on the ceiling or floor of a room. Therefore, assuming that 3 yd is the height, the area to be covered by wallpaper is 2(6 X 3) + 2(8 X 3) = 84 square yards. The ceiling or floor would take an additional 6 X 8 = 48 square yards each if they are also to be covered.
One theory is, that it will continue to expand forever because the velocity at which it is expanding will over come the gravitational effect of the galaxies on each other. Another Theory is that due to Gravitational pull, the galaxies will start to pull each back towards a central point and start of a new Big Bang. This is called the Oscillatory Theory