According to grammar rules and most style books, you would hyphenate all compound numbers from twenty-one to ninety-nine. Therefore the correct answer is b, ninety-eight.
Answer:
All [of] the spa's pools ARE very hot. But, I still enjoyed my stay.
Explanation:
Not sure if of needs to be there. When things are plural they take the are form of is.
Answer:
He asks of his future, which then they say that Banquo is lesser than Machbeth and greater, but not so happy, yet much happier.
Explanation:
They can be in odjective forms such as him, her, I
The growing uncertainty about the outcome of events