No, nineteen is spelt correctly.
No, the word "nineteen" does not need a hyphen when written numerically.
no
If you mean the word for 19, then there is no hyphen and it is nineteen, not nine-teen.
No, you don't need a hyphen. It would be 10 decades or ten decades.
You say "A hyphen" because the sound of the letter "H" at the beginning of the word "hyphen" is pronounced, making it a consonant sound.
No, deworming is not spelled with a hyphen.
No, decision making does not have a hyphen. It is considered a compound noun that is used without a hyphen.
If you mean the word for 19, then there is no hyphen and it is nineteen, not nine-teen.
It does not need to have a hyphen! :)
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.
No. The word is "pinpoint".