Learn Spanish (Latin America): Ella prefiere tomar cualquier apunte con una pluma. - She prefers to take any note with a fountain pen.

Because it comes directly before the singular noun apunte. Whenever this word is used as an adjective right before a singular noun (whether masculine or feminine), it drops the final 'a' and becomes cualquier.

Why is tomar used for 'to take' instead of llevar?

In Spanish, tomar is used for 'taking' in the sense of grabbing, consuming, or recording information, like tomar apuntes (to take notes). Llevar is used when 'taking' means transporting someone or something from one location to another.

Is apunte the same as 'note'? Why not use nota?

Both words work! Apunte specifically refers to a written note or jotting, like what you take during a class or lecture. You could also say tomar cualquier nota, but apunte is a very natural choice here because it emphasizes the physical act of writing something down.

Wait, doesn't pluma usually mean 'feather'?

It does! But because people historically wrote with quill feathers, pluma became the standard word for a fountain pen. In many parts of Latin America, it is also used for regular ink pens, though bolígrafo or lapicero are common terms for ballpoint pens.