yes
The hyphen would be located between the mid and the century.'Mid-century'.
Yes. The prefix mid- is hyphenated when it is used with numerals or written-out numbers. For example, the mid-twentieth century.
No, in general it is not correct to hyphenate certain prefixes, co-, pre-, mid-, de-, non-, anti-, etc. You therefore write preordain instead of pre-ordain, antidote instead of anti-dote, and midnight instead of mid-night.
Yes, "mid-July" is hyphenated. The hyphen is used to link "mid" and "July" to indicate that it refers to the middle part of the month. This helps clarify the meaning and ensures proper grammatical structure.
In this use of the medical terminology, "mid-left" would be correct. This is likely only an issue in a thesis or published article, as the reference is clear either way.
Don't hyphenate; ongoing is one word.
You do not hyphenate the number.
I think it's more accepted to hyphenate it.
You hyphenate it only at the hyphen.
You do not need to hyphenate.
You would hyphenate "thank you" when it is used as an adjective before a noun, such as in "a thank-you card."
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.