Como dizer "nota de corte" em inglês

You can use "cut-off points/cutoff mark/cutoff score" etc, meaning the minimum benchmarks.

If you wish, a more academic description of it:
The term cut-off score refers to the lowest possible score on an exam, standardized test, high-stakes test, or other form of assessment that a student must earn to either “pass” or be considered “proficient.”
Source:
Ref. edglossary

We can also think of a minimum score (threshold).required in an exam or subject.

Muito obrigada PPAULO!

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