Examlex
What elemental isotope has 51 protons and 72 neutrons?
Marginal Rate
A term that may refer to the rate at which one variable changes as another variable changes marginally, often used in the context of taxes, substitution, or transformation.
Substitution
The act of replacing one good or service with another in response to shifts in relative prices or changes in consumer preferences.
Bundle
A group of products or services that are sold together as a single package, often at a discounted price.
Optimal Choice
The best possible selection among various alternatives, maximizing efficiency or utility under given constraints.
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