Yes well at least that is what is what ive learnt
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No, it is not.
Sqrt(25) is -5 or +5, both of which are rational.
is 5 over 7 a rational number
Yes - the proper fraction 7/19 is a rational number.
7 is a real number, as it represents a quantity on the number line. It is also a rational number, as it can be expressed as the ratio of two integers (7/1). Additionally, 7 is an integer, as it is a whole number without a fractional or decimal part. In summary, 7 is a real number, a rational number, and an integer.