Examlex
Exponential functions are useful for modeling enviromental issues.
Fiat Currencies
Money that a government has declared to be legal tender, but it is not backed by a physical commodity.
Cryptocurrencies
Electronic currencies employing cryptography to secure transactions and operating autonomously from any central banking institution.
Legal Tender
Currency that must be accepted if offered in payment of a debt, officially issued by a government or monetary authority.
Cryptocurrencies
Digital or virtual currencies that use cryptography for security and operate independently of a central bank, exemplified by Bitcoin and Ethereum.
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