first digit of the phone number can not be a U?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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19. How many 10 digit phone numbers are there in Montana with an area code of 406 and the
first digit of the phone number can not be a 0?
*
Transcribed Image Text:19. How many 10 digit phone numbers are there in Montana with an area code of 406 and the first digit of the phone number can not be a 0? *
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