adverbs and hyphens.

0 Hello,02br
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00I wonder if you could help me a little with adverbs and hyphens? Am I correct in thinking any sentence or phrase used adverbially doesn't require a hyphen? Such as:02br
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00"Mr Jones, who will be 45-years-old next month." So this would be incorrect and should read "Mr Jones, who will be 45 years old next month"?02br
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00"Mr Jones will be 45 years old next month" This should be hyphenated as there is no adverb?02br
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00"Mr Jones will be 45 years old next month; he will then be a 45-year-old man" This is wrong and should be the other way around? for example "Mr Jones will be 45-years-old next month; he will then be a 45 year old man"?02br
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00Any help on this subject will be much appreciated. 0-