Is 5 squared a rational number or an irrational number?

Is 3 1/4 a rational number but not an integer?

Is pie an irrational number?

Is - 5.66666666666666666 a rational or irrational number and is it an integer?

5 squared is a rational number because it can be expressed as 25/1, which is a ratio of two integers.

3 1/4 is a rational number but not an integer because it can be expressed as 13/4, which is a ratio of two integers but not a whole number.

Pi (π) is an irrational number because it cannot be expressed as a ratio of two integers or as a terminating or repeating decimal.

-5.66666666666666666 is a rational number because it can be expressed as -17/3, which is a ratio of two integers. However, it is not an integer because it is not a whole number.