You do not. It is a single word, not a hyphenated one.
You do not hyphenate 30 minutes, as in "She took thirty minutes to finish her test."You do, however, hyphenate 30-minute as in, "She took the thirty-minute exam."The distinction is that in this latter case 'thirty-minute' is used as a compound adjective (describing the timed exam) whereas in the first example 'thirty' is an adjective describing 'minutes'.An easier way to remember it is that you only hyphenate when the adjectives are acting together for a single purpose (such as modifying a single word together).
"Every person was" is correct. "Every person" is treated as a singular noun, so it should be followed by the singular verb "was."
Every single person I know hasn't.
A person from Vietnam is called Vietnamese. If the person is an American, he or she might hyphenate it, like Vietnamese-American.
Every marry cuple
You do not need to hyphenate.
You do not hyphenate the number.
Don't hyphenate; ongoing is one word.
You hyphenate it only at the hyphen.
I think it's more accepted to hyphenate it.
every single Jewish person ever.