What kind of football?
American football, Association Football or Australian Rules?
I take the white footballs and i would guess about eight because that equals a bar.
A Lot
A lot
3000
Roughly 20 years to build the Pyramid of Giza.
A rectangular pyramid isn't a real shape.It's called a square based pyramid.This is what it looks like... CONE IS ABOVE. SQUARE BASED PYRAMID this is a net of a square based pyramid (what a 3d shape will look like if we take it apart... ok hope you learned something bye
That would depend on the pressure to which each football is inflated.
about a day and it will be out
Thousands.
milions of them
20
25 thousand