I take the white footballs and i would guess about eight because that equals a bar.
A Lot
A lot
3000
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
Roughly 20 years to build the Pyramid of Giza.
That would depend on the pressure to which each football is inflated.
about a day and it will be out
20
Thousands.
25 thousand
milions of them