[Grammar] a ten minute walk

[englishhobby]

Hello, everyone, I think I knew the rule once how to say it correctly, but I can't recall it now :-?:

1. I live a ten-minutes walk from the university.
2. I live a ten-minute walk from the university.
3. I live a ten-minutes’ walk from the university.
4. I live a ten-minute’s walk from the university.
5. I live ten-minutes walk from the university.
6. I live ten-minute walk from the university.
7. I live ten-minutes’ walk from the university.
8. I live ten-minute’s walk from the university.

Which of the sentences above are correct? Could you help me with the rule?

 

[Barb_D]

Either a ten-minute walk or ten minutes' walk.

 

[englishhobby]

Thank you, Barb_D!

 

[Barb_D]

Thank you for giving your thread a helpful title.

Let's say you are leaving your job. Here it is customary to let your employer know this two weeks in advance. What two ways could you write about this notice of two weeks?

 

[englishhobby]

Using the same principle as with "a five minute walk", I think it'll be as follows:
1) to give a two week notice
2) to give two weeks' notice

And I was surprised to have come across this:
He has to give 4 weeks of notice before he can leave.
Is the latter also used? And if so, does it mean the same as 1) and 2)?

 

[bhaisahab]

Using the same principle as with "a five minute walk", I think it'll be as follows:
1) to give a two week notice
2) to give two weeks' notice

And I was surprised to have come across this:
He has to give 4 weeks of notice before he can leave.
Is the latter also used? And if so, does it mean the same as 1) and 2)?

1) is not natural. It's perfectly grammatical but we don't say it like that.
I think I've heard your third example, but it's not common IMO.

 

[englishhobby]

Thank you, bhaisahab!