Rational numbers are numbers that can be expressed as a fraction such that the numerator and denominator is an integer(whole numbers).
We would consider the given options
A. The square root of 121 is 11. This means that the number would be
- 11/7
The numerator and denominator are integers. thus, it is a rational number
B. It can be written as 2 root 2 divided by 1. But root 2 is not an integer. This means that the numerator is not an integer. Thus, the number is not rational.
C. The number is a repeating decimal. This means that it can be expressed as a fraction of two