A Margin Requirement is the percentage of marginable securities that an investor must pay for with his/her own cash. It can be further broken down into Initial Margin Requirement and Maintenance Margin Requirement.
Answer: What is the author trying to tell you? What do you think this paragraph is about?
The author wants to tell you that Chinook Salmon are a big part of the aquatic food web.
Answer:
Leading indicators measure economic activity in which shifts may predict the onset of a business cycle. Examples of leading indicators include average weekly work hours in manufacturing, factory orders for goods, housing permits and stock prices. Changes in these metrics could signal a shift in business cycle
