7.09 is not greater than 7.2 because .09 is on the hundren place while .2 is on the tenth place. If you wanted to know whether 7.09 is greater 7.2, you had to move one time on the right for 7.2 and it will give you 7.20 which is now in a hundren place.
So if you look closely 7.20 will be greater than 7.09
Both A and C are correct.
Yes there was many things us could have done to avoid the war but they refused to let communism spread
His attitude was very rude towards her
It makes the reader decide for themselves.
Hemingway thought to many adjectives would force the how to feel about things.