Respuesta :

It is 100% because there is only 5 red balls.
The math:

(5/5) x 100%
1 x 100%
= 100%

hope this helps :)
There is a 100% chance because the bag only contains red balls.

If other wise put the 5 over the total number of balls. That would be your answer unless it can be put into simplest form.