Like many other words, it depends . . . If the words are used together as an adjective, they are hyphenated. "Alice bought a 90-cent picture frame." If the words are just nouns, they are not hyphenated. "Alice's picture frame cost 90 cents".
It is not hyphenated.
Motorcycle is not hyphenated
No it's not hyphenated.
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
No, "hardworking" is not hyphenated.
Yes it should be hyphenated.
It can be. Some words can be seen both hyphenated and non-hyphenated.
"Field" is not hyphenated.
No they shouldn't be hyphenated.
Yes it should be hyphenated.
All-consuming is hyphenated