The prefix would be epi-, as in epidermis. (The outer layer of skin)
The first one, a brother & sister that immigrated to the Us from Ireland as children. The reason why is because they experienced the struggles as an immigrant first hand instead of using someone else's story, giving it more credibility.
Vain is the correct answer. Plug in each word given into the sentence and then read it to see if the sentence makes sense.
"We may try in credibility to solve our problems on our own.." Credibility is incorrect.
"We may try in predict to solve our problems on our own.." Predict is incorrect.
"We may try in forgive to solve our problems on our own.." Forgive is incorrect.
"We may try in vain to solve our problems on our own.." Vain is correct!
Hope this helps! (:
False! A limerick typically has five lines!
