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Why does the rotation of our galaxy suggest that it is more massive than previously thought
Combinations
In mathematics and statistics, combinations refer to the selection of items from a group, where the order of selection does not matter.
Total Utility
The overall satisfaction or pleasure a person derives from consuming a certain quantity of goods or services.
Marginal Utilities
The increased enjoyment or benefit obtained by a user from the consumption of one more unit of a good or service.
Buyer's Income
The total earnings available to a buyer for the purpose of making purchases, including both disposable income and any credit.
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