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Retrograde motion was important in the development of our understanding of the solar system because
Buyer
An individual or entity that purchases goods or services for personal use, resale, or to incorporate into the production of other goods.
Tax
An essential monetary charge or dissimilar levy exacted upon a taxpayer by a government sector to facilitate government expenses and diverse expenditures for the public.
Unique
Being the only one of its kind; unlike anything else.
Inelastic Demand
A situation where the demand for a good or service is relatively unaffected by changes in price, indicating that the quantity demanded changes very little with price fluctuations.
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