Numismatics, or the study of coins, can tell us a great deal about societies and cultures from the past. Which of the following can be determined from coins? [Select all correct answers]

- "made the south's economy grow rapidly and a small effect that a lot of people don't know is that it made the more demand of slaves and cotton products. and also new states formed due to plantations growing in size."

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worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

the answer is b. hope this .