Yes.
It is a rational number. It can be written as a fraction.
There are infinitely many sets: Some examples: {346}, or {346, sqrt(2), pi, -3/7}, or all whole numbers between 43 and 530, or multiples of 2, or composite numbers, or counting numbers, or integers, or rational numbers, or real numbers, or complex numbers, etc.
yes
18.601075237738274 x 18.601075237738274 = 346
Is 12.05 a rational number or irrational number?
1.96 is a rational number
It is a rational number, as it can be written as a fraction.
Yes, the sum is always rational.
There is no such thing as a number that is both rational and irrational. By definition, every number is either rational or irrational.
As much as, in these days of uncertainty, anything can be anything. As long as the constraints of a rational number are kept to, a rational number will always remain a rational number.
Yes, it is.
Yes.