Respuesta :

Explanation:

Rational numbers are numbers that can be written as a fraction of two whole numbers. Whole numbers are rational too.

Irrational numbers can't be expressed as a fraction.

For these numbers we have -2/5 which is already a fraction, therefore it's a rational number.

1.5 is can be written as 3/2 so it's rational.

[tex]0.\bar{3}=\frac{1}{3}[/tex]

it's rational

[tex]\sqrt[]{9}=3[/tex]

rational.

Square root of 7 doesn't have a whole result, so it's irrational

Answer:

The correct option is the third one:

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