"Dvacet čtyři stromů je dost."

Translation: Twenty-four trees are enough.

[Tibro3]

Why wouldn't "are" be as equally correct as "is", depending on specific context?

[VladaFu]

Both are accepted. However, Duolingo is doing something fishy here as the main translation in the system is different from that one shown here. I will try to force some update.

[Renardo_11]

I just got this as a “word bank” exercise, and there was an “are” brick but no “is” brick. So I would assume that “are” is an accepted answer now.

[VladaFu]

It has always been accepted. Well, at least supposed to be.