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Write an equation for the sphere with the given point as its center and the given number as its radius.
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Preserving
The act of maintaining or keeping something in its original or existing state.
Personal Information
Data relating to an individual that can identify them, such as their name, address, or online identifiers.
Social Security Number
A unique nine-digit number assigned to U.S. citizens and permanent residents, used for tracking individuals for social security and other purposes.
Anniversary
The date on which an event took place in a previous year, often celebrated or commemorated annually.
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