Question: answer this Counting Principle A student number system for a county requires that the student number be 5 characters. The first 3 characters are any

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answer this Counting Principle A student number
Counting Principle A student number system for a county requires that the student number be 5 characters. The first 3 characters are any single digit number, but no number can repeat and the last 2 characters must be letters, but no letter can repeat. How many unique student numbers are possible? () 468,000 250,000 (c) 1,370 (D) 131,040

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