To make a sentence using "reevaluate", you could say: "I need to reevaluate my decision before moving forward with the project."
That is the correct spelling of the word "reevaluated".
You do not need to hyphenate.
You do not hyphenate the number.
Don't hyphenate; ongoing is one word.
You hyphenate it only at the hyphen.
I think it's more accepted to hyphenate it.
Can you, or should you? You can hyphenate it if you're moving between lines in a paragraph and need to break up the word. You shouldn't hyphenate it normally.
You would hyphenate "thank you" when it is used as an adjective before a noun, such as in "a thank-you card."
You mean at the end of a line? Well it depends on how much room you have hyphenate at a syllable is probably best. If you have little space before the end of the line don't hyphenate a word. You could hyphenate like this trans- portation.
spoil
Reevaluate