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Help stuck please Christine De Los Rios Test: Exam 4 (Chapters 8 & 9) Question 14 of 20 This test: 22 point(s) possible This question:

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Christine De Los Rios Test: Exam 4 (Chapters 8 & 9) Question 14 of 20 This test: 22 point(s) possible This question: 1 point(s) possible A certain country's postal service currently uses 4-digit zip codes in most areas, How many zip codes are possible if there are no restrictions on the digits used? How many would be possible if the first number could not be 3? How many zip codes are possible if there are no restrictions on the digits used? How many would be possible if the first number could not be 3

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