Question

@Michele_Laino

Answer 1

This all I got

Answer 2

I think their both rational

Answer 3

hint:
\[\frac{{40}}{{10}} = 4,\quad {\text{and }}4{\text{ is a perfect square}}\]
pi is irrational by definition
and:
\[{\text{0}}{\text{.\bar 3 = }}\frac{3}{9} = \frac{1}{3}\]

Answer 4

oops..
\[{\text{0}}{\text{.}}\overline {\text{3}} {\text{ = }}\frac{3}{9} = \frac{1}{3}\]

Answer 5

Ok so this is what I have now
1.A
2.B
3.A
4.A
Correct?

Answer 6

that's right!

Answer 7

Thx! c:

Answer 8

thanks! :)