The term "end to end" is typically not hyphenated when used as a phrase to describe a process or solution, as in "end to end services." However, when used as a compound adjective before a noun, it can be hyphenated, such as in "end-to-end solution." Always consider the context to determine the appropriate usage.
You mean at the end of a line? Well it depends on how much room you have hyphenate at a syllable is probably best. If you have little space before the end of the line don't hyphenate a word. You could hyphenate like this trans- portation.
Year-end is hyphenated in AP Style and is an adjective.
Don't hyphenate; ongoing is one word.
You hyphenate it only at the hyphen.
I think it's more accepted to hyphenate it.
You do not need to hyphenate.
You do not hyphenate the number.
If you absolutely must hyphenate a word at the end of a line then you should do so between syllables (and not in the middle of a syllable) to ensure meaning remains intact. A good way to hyphenate this word would be: investi-gation.
Can you, or should you? You can hyphenate it if you're moving between lines in a paragraph and need to break up the word. You shouldn't hyphenate it normally.
You would hyphenate "thank you" when it is used as an adjective before a noun, such as in "a thank-you card."
No...
You can hyphenate 3 bedroom when it is used in a list. It is usually not hyphenated when it is used by itself.