Answer:
In my opinion, it could be D.
C is wrong just by using common sense, B and A doesn't make much sense either. But D seems reasonable.
Answer:
-4*4^7
Explanation:
Exponents indicate a number times itself x number of times. (n^x)
There are a total of 8 fours. So -4 times a non-negative 4 times itself 7 times = -4*4^7.
Answer:
C
Explanation:
This title is the most appropriate because it does not limit research to a narrow question, but rather asks a series of essential questions.
Much research will have to go into the three questions of how, when, and why doughnuts became popular, but ultimately all these questions will help reveal the beginnings of a popular food item in the modern United States.
<em>terms that are specialized to a particular content or topic.</em>
