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Answer: $80
Explanation:
The opportunity cost is regarded as the real cost of the alternative that was left or forgone.
Based on the information given in the question, the opportunity cost is the free ticket to a Post Malone concert that is worth $80 which was given to me by my friend.
Therefore, the correct option is E.
Answer:
One of the main advantages of online banking is that you can access information about your account immediately and from anywhere. Before online accounts were available, you had to go to a bank or ATM on some specific cases if you wanted to carry out any type of transaction, e.g. pay a service or transfer money. Online accounts make it less likely for a person to go to a bank, e.g. in order to get a loan, I did it all online, I didn't even need to go to the bank.
The three areas are; "the economy, the environment, and society".
Sustainability organizations are composed of groups of individuals that plan to propel sustainability or potentially those activities of sorting out something economically. Dissimilar to numerous business associations, sustainability associations are not restricted to actualizing sustainability methodologies which furnish them with financial and social advantages accomplished through ecological duty. For these associations or organizations, sustainability can likewise be an end in itself without additional explanations.
Answer:
Network externality is the correct answer.
Explanation: