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Is it correct to say "It's a 4 hour stopover."?

Answer 1

Jack Allen

Yes. That's okay, but . . .

But to be correct, you should put a hyphen between "4" and "hour":

It's a 4-hour stopover.

And it's more formal to use the word "four":

It's a four-hour stopover.

The hyphen is because both "four" and "hour" are working together to modify "stopover".

What kind of stopover is it? A four-hour stopover.

The same is true whenever a two-word combination functions as a single adjective to modify a noun:

She's a well-behaved child. (What kind of child?) He was hell-bent on getting it done. (What was he?)

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.