Well, since there is no such thing as a sphare in the real world, it is a bit hard to tell what it can or cannot use.
Unless you are an electrical engineer or a math teacher, every number you will ever use in a real world situation will be a real number.
use a absolute value to represent a negative number in the real world
Yes
use a absolute value to represent a negative number in the real world
you wouldn't
the bunnies :)
to keep rythm
Jeopardy.
To add fractions.
A bridge
Yes.
7/8