Approximately 52,503,904
32 (16 to a pint ... a pint is a pound the whole world round).
3
2 Half steps
The World Is Round has 447 pages.
Ten whole numbers round to 50, if you include 50 itself which requires no rounding.
2
5
The answer depends on how many digits you wish to round to.
Four half steps, or two whole steps.
There was 2007 steps
5
I'm not sure exactly what you mean by how many steps but I can explain a whole tone scale for you. A whole tone scale is comprised of all whole steps. For example: A B C# D# F G A or Bb C D E F# G# A# (which is Bb) So I guess there are 7 notes in the whole tone scale if that was what you were looking for.