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What causes a star to leave the red giant phase and settle on the horizontal branch?
Total Surplus
An economic measure representing the total benefits to consumers and producers, achieved by the difference between the willingness to pay and the actual price paid, plus the cost savings to producers.
Trade
The exchange of goods, services, or both between two or more parties, either within a country or across international borders.
Sales Tax
A tax imposed by governments on the sale of goods and services, collected at the point of sale and typically expressed as a percentage of the sale price.
Lowest Price
The minimum price at which a product or service is offered in the market.
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