The boundary of this type of region can vary widely because people can have different sense of what defines and unites these regions.

Explanation:A region can be defined as a geographic area that has some consistent features or characteristics throughout. Regional boundaries are places where those features or characteristics change.

(bro she is ancient)

j < 14

j is jakes age

since jake is younger it makes his age less than his sisters

(if you meant she is 14)

answerinternational border(ib);