D 1. Are the number of telephone numbers within a particular area code determined by permutations,...

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D 1. Are the number of telephone numbers within a particular area code determined by permutations, combinations, both, or neither? Are there any restrictions? Explain your answer with details. 2. Think about setting up a code for 24 letters (all of the letters in the alphabet except for O and with a two-number code for each letter. What are the pros and cons of assigning codes randomly vs. systematically? D 1. Are the number of telephone numbers within a particular area code determined by permutations, combinations, both, or neither? Are there any restrictions? Explain your answer with details. 2. Think about setting up a code for 24 letters (all of the letters in the alphabet except for O and with a two-number code for each letter. What are the pros and cons of assigning codes randomly vs. systematically?