A mean (also known as average) is adding up all the numbers you have and then dividing it by how many numbers you had. Tara says the mean is 6. When you add these numbers up you have 30 and there are 5 numbers. When you divide 30 by 5 you get 6, therefore Tara is correct.
A subject in grammar is the first part in a sentence about which the second part, the predicate, tells something.
What type of book? Can it be any book?
A. to record researched evidence
(They should also have the source of where you found the evidence on them)
Answer
What is the "unfinished work" Lincoln mentions in paragraph 3? Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.
