which of these numbers is not rational?

A.√3
B.0.25
c.1/5*
d.√9

*= My answer

6 answers

Can someone please check my answer???
No. C is wrong.

Study this site.

http://www.mathsisfun.com/rational-numbers.html
So it's B.
I mean A!
yes. A.
One and one half
4 batches
start root 3 end root
one-half
4 to the 8th power
one-third
81
–7 • –7 • –7 • –7 • –7