Question

P={x:x is a natural number,x<9​

Answer 1

This question is incomplete and cannot be answered.
There are 8 natural numbers less than 9. (1, 2, 3, 4, 5, 6, 7, 8)
but we don’t know how large the set is we are choosing from.

Answer 2

x:x = 1 so it is a natural number

Explanation:

it can be any negative number because: -x<9

and any number from 1 to 8

(x cannot be 0, because you cannot do 0/0 = 1)