-9 is the ratio of 9 to -1. It's completely rational.
9 is a rational number
Yes 9 times pi is an irrational number because it can't be expressed as a fraction
9 is a rational number
No because -9 is a rational number
9 is a rational number
-9 is a rational number
No.
No, it is rational.
2.25
An irrational number cannot be written as a fraction or a whole number,Like Pi for example
The number has a decimal representation that terminates (after 9 digits). If it terminates, the number is rational.
0.6923