yes, all numbers except numbers that have non-terminating, non-repeating decimals.
-9 is the ratio of 9 to -1. It's completely rational.
It is 9, though if you must have it in the form of a ratio, you could try 9/1.
9 is a rational number
9 is a rational number
9 is a rational number
It is rational.The square root of 9 is 3 and it is a rational number
Yes.
Yes, it is.
It would depend on where you put the parentheses. 7/9 - 9 is a rational number 7/(9-9) is not even a number at all - surely not a rational number.
-9 is a rational number
Out of the numbers,9, 10, 1, and 4,no number is irrational.Each of these numbers can be written in the form p/q (p,q = Z ; q not equal to 0).9 = 9/1, 10 = 10/1, 1 = 1/1 and 4 = 4/1So, all these numbers are rational. and none of these numbers is 'not a rational number'.
5.2 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.