Yes it is
It's rational ... it's the ratio of -127 to ' 1 '. Here's a tip that'll save you lot of future wonder and uncertainty: Any number that you can completely write down on paper is rational.
Neither. (It is a complex number.)
It is a rational number. It can be written as a fraction.
yes
No. 127 is not a composite number because it is only divisible by 1 and 127
127 is prime.
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.