Well I don't see the picture
Answer:
The best definition of marginal benefit is the possible income from producing an additional item. ... At this moment, the marginal utility decreases. So consumers have a marginal benefit when the consume a product for the first time.
The Common noun for the sentences is An airline pilot travels many miles every day.
the answer for the question is that airline pilot travels beause it common noun.
Answer:
During the 2016 presidential election, America's election infrastructure was targeted by actors sponsored by the Russian government. Securing the Vote: Protecting American Democracy examines the challenges arising out of the 2016 federal election, assesses current technology and standards for voting, and recommends steps that the federal government, state and local governments, election administrators, and vendors of voting technology should take to improve the security of election infrastructure. In doing so, the report provides a vision of voting that is more secure, accessible, reliable, and verifiable.
Explanation: