Find the Indicated Cardinal Number $n ( C \times D )$

question 158

Multiple Choice

Find the indicated cardinal number.
-Find $n ( C \times D )$ given that $C = \{ 4,5,6 \}$ and $D = \{ 7,8,9,10 \}$ .

• A) 27
• B) 12
• C) 81
• D) 7

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Definitions:

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