Answer:
Needs hyphen:
in eighty two days
twenty six letters
two thirds of the class
Does not need Hyphen:
the fourth person in line
three thousand years
Explanation:
Hyphen needed for numbers between 21-99
Needs hyphen: -in eighty two days -twenty six letter - two thirds do the class
Doesn’t need hyphen: -the fourth person in line -three thousand years
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