How to delete a folder on a MAC - 1 hour into this

Silly question.... Every three months we dive into wrike thinking we will start using it and every time we hit a hard stop over something simple... today we discovered we cannot add subfolder so now we must go upstream and delete a level above to make room below. Silly silly silly question - how do you delete a folder on a Mac - no right click. Common sense has eluded me of the solution.