ERGENTWhich expression represents a rational number?

Step-by-step explanation:

Rational Numbers

Rational numbers are those that can be expressed as the fraction

where a and b are integers and b≠0.

Examples of rational numbers are:

4/3, -100/34, 9, -5, 0

Note the last three numbers are integers but they also can be called rationals because they can be written as 9/1, -5/1, 0/1.

Irrationals are those numbers that cannot be expressed as fractions, i.e. they are not rationals.

Examples of irrational numbers are:

Analyzing the available options:

is not a rational number because the value of the root is not exact

π and are not rational numbers either, but .

Thus the only rational number from the list is

#12 the answer is the third option