Question

what type of number is π? choose all answers that apply: a whole number b integer c rational d irrational

Explanation:

Whole numbers are non-negative integers (0,1,2,...), integers include positive/negative whole numbers and 0. Rational numbers can be written as $\frac{p}{q}$ where $p,q$ are integers and $q
eq0$. $\pi$ has a non-repeating, non-terminating decimal expansion ($3.1415926...$) and cannot be expressed as such a fraction, so it is irrational.

Answer:

D. Irrational