I'm a pre-med student at school.
Here is an example of using a hyphen correctly: Justin was purpose-driven by his motivation to finish well.
In a range name instead of using a space or hyphen, use a?
The use of a hyphen is often in question when referring to two words. If one is using "half day" to modify another noun, then proceed with using the hyphen. For example, a "half-day holiday", and "I took half a day off".
You do not use a hyphen when writing square feet. Using a hyphen would make it one word which should not be the case.
Yes, whenver using square-foot you should use a hyphen
A hyphen is a punctuation mark used to join words and to separate syllables of a single word. Spaces should not be placed between a hyphen and either of the words it connects except when using a suspended or "hanging" hyphen.
Yes, because you're using the phrase as an adjective (example: "This long-lasting lipstick is great."). Definitely use a hyphen.
No hyphen is needed for world class. World is just an adjective that describes class much like (for example) upper class, which also does not need a hyphen.
No, the correct spelling is extracurricular. Adding extra does not require a hyphen. For example, extraterrestrial is extra+terrestrial (no hyphen needed).
a hyphen EXAmPLE: golden - ball
No. Just looked it up in a printed dictionary. In fact, no work with the 'multi' prefix uses a hyphen. For example, multilateral
If you're using the phrase as an adjective (example "I hate the end-of-the-year audit!") then it will definitely need the hyphens. Otherwise, the hyphens are incorrect.