Yes it is, but not every real number is a rational number
False.
No. Though every perfect square is a rational number, not every rational number is a perfect square. Example: 2 is a rational number but sqrt(2) is not rational, so 2 is not a perfect square.
Every rational number does.
Every rational number does.
There is no such thing as a number that is both rational and irrational. By definition, every number is either rational or irrational.
No. Every real number is not a natural number. Real numbers are a collection of rational and irrational numbers.
Every rational number.
Every integer is also a rational number and a real number.
The set of rational numbers is a subset of the set of real numbers. That means that every rational number is a real number, but not every real number is rational. The square root of 2 is an example of a real number that isn't rational; that is, it can't be expressed as the quotient of two integers.
No
Every counting number, and the negative of it, are real, rational integers.
Yes every irrational and rational number is a real number.
Yes.
No. 3.6427 is real and rational, but not a counting number.
Yes, it is.
Yes.
Yes. Every integer is a rational number. Every rational number is a real number. Every real number is a complex number. The complex numbers include all real numbers and all real numbers multiplied by the imaginary number i=sqrt(-1) and all the sums of these.