What Number Must Be Added To $- 21$ To Obtain $0$ ?
A)

question 34

Multiple Choice

What number must be added to $- 21$ to obtain $0$ ?

• A) \(1\)
• B) \(- 21\)
• C) - 42
• D) \(0\)
• E) \(21\)

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A user interface element that lets users navigate to different pages in a document by entering or selecting a page number.

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An interface in word processors and other applications where users can change the appearance and formatting of styles used in documents.

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The largest and most prominent level of heading in a document, used to organize content and indicate main sections.