Answer:
<u>Sumer</u>, located in Mesopotamia, is the first known complex civilization, having developed the first city-states in the 4th millennium BCE. It was in these cities that the earliest known form of writing, cuneiform script, appeared around 3000 BCE.
Explanation:
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Answer Marginal revenue is the amount of revenue one could gain from selling one additional unit. Marginal cost is the cost of selling one more unit. If marginal revenue were greater than marginal cost, then that would mean selling one more unit would bring in more revenue than it would cost.
Explanation:
Many officers consider dispatch to be their unsung heroes.