Answer:
C
Step-by-step explanation:
A rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.
C is the correct answer since it can be expressed as a fraction which equals to 7/9.
Hope it helps:)
A
Pi is an irrational number so it can't be B.
√(5) is an irrational number so it can't be D.
It could be either A or C... Hm, go with A. Let me know if it works.
