Translation of "これで足りる？" in English

これで足りる？

Is this enough?

休み中の費用は、これで足りるかな。

Will this cover the holiday expenses?

これで足りるかどうかは分からない。

I don't know if this will be enough.

- これで足りる？
- それで十分？
- あれで十分かな？

- Is this enough?
- Is it enough?
- Is that enough?