Answer:
A System
Explanation:
Novak is referring to a system. A system is a complex union of several interrelated parts that have different specific functions, but share a common goal, and a more or less common mechanism.
Society is a system, a computer as well. Firms are systems, they have different parts: employees, stockholders and management that have specific functions but work together toward a common goal: generating revenue.
Answer:
b. not protected by the First Amendment
Explanation:
Based on the information provided within the question it can be said that the Julia's website is not protected by the First Amendment. This is because the Supreme Court has never interpreted freedom of speech to allow the inclusion of obscenities. Which "threatening posts about celebrities" would fall under the category of obscenity and not be protected under the First Amendment.
Answer:

At Price = 
Quantity demanded =
At Price = 
Quantity Demanded =
Now,


Above formula if used will give the correct answer related to Price Elasticity of Demand.
Another variant of above formula is also being used on prominent basis.
Utilization of any of the above Formula will give the ideal outcome in estimating Price elasticity of demand.