Fifty cents is a plural noun since it is talking about more than one cent. In the example, you would say, "fifty cents <em>is </em>how much I owe you".
The options were not provided, so a general answer to the question will be provided. If Rashon wants to find out about how World War 1 affected the United States he has to make research and possibly interview people who witnessed the events. These are the primary sources.
- World War 1 was fought between 1914 to 1918. Most of the people who witnessed this war might now be dead.
- For Rashon to find out the most information about how the United States was affected by the first world war, he needs to conduct research from online and library sources.
- He could retrieve written first-person accounts that show the personal experiences of citizens and the nation.
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Answer: Know what you are talking about, know when it is the right time for you to talk, have materials/ notes on hand, be confident (but not overly confident), and stay calm
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