No, it is rational.
It is rational. It is rational. It is rational. It is rational.
"Rational" is an adjective and so there cannot be "a rational" (and certainly not "an rational"). Any answer would depend on whether the question was about a rational number, a rational person, a rational argument or "a rational" combined with some other noun.
It is rational.
It is rational.
Rational
1.14 is rational.
Rational. Rational. Rational. Rational.
This question requires more context. Which country? As different countries have different taxation systems and laws. Personal taxation or company taxation? Here again there are normally different levels of taxation.
rational
4.6 is rational.
No, it is rational.
It is a rational number
It is rational. It is rational. It is rational. It is rational.
uniformity in taxation
outline the reasons for taxation
i'm pretty sure it was "No Taxation Without Representation."