Yes, "school-based" should be hyphenated when used as a compound adjective before a noun. The hyphen clarifies that the term describes something originating from or related to a school, such as in "school-based programs." However, if used after the noun, as in "the programs are school based," the hyphen is typically not needed.
It does not need to have a hyphen! :)
No, the word "nineteen" does not need a hyphen when written numerically.
No
It's not a word in the dictionary, so yes, use the hyphen.
I do not believe that multitasking is supposed to have a hyphen.
You typically need only capitalize after sentence-ending punctuation, which a hyphen is not.
no
No.
no
No
Yes, in-home does need a hyphen. It's two words put together to form a word for a different concept.
heart-felt