A metaphor is used to compare two things without using the words 'as' or 'like' in the sentence.
Example: He is such a pig - that sentence compares two things the boy and the pig and no words such are mentioned with 'as or like' therefore it is a metaphor
[He has estimated that the problem would lead to a loss of $10,000 and would require time to resolve.]
This should be the right answer hope it helps!!
False, an essay is a lot more detailed then a speech and a speech is written and spoken by you