Rational numbers, Real numbers, Natural numbers, whole number
Step-by-step explanation:

Rational numbers can be written as a fraction. 49 can be written as a fraction
Real numbers consists of natural numbers, whole umbers, integers and rational numbers.
Since it is already a rational number, then it is also a real number
Natural numbers are counting numbers from 1 to positive infinity. 49 is between 1 to positive infinity.
Hence, it is a natural number
whole numbers start from 0 to positive infinity. 49 is between 0 to positive infinity.
Hence, it is a whole number
Irrational numbers cannot be written in the form of fraction. SInce 49 can be written as fraction, it is not an irrational number
Hence, the set(s) of numbers would you find the number 49 are Rational numbers, Real numbers, Natural numbers, whole number