Are all integers rational

Answer 1

Yes, all integers are rational.
Yes.

Rational numbers are those numbers which can be expressed in the form (p/q) where 'q' is not equal to 0.

since 'q' can be 1, every integer can be expressed in this form and hence is a rational number.

For example, the integer 3 can be expressed as 3/1 which is of the (p/q) form.