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August 3, 2015

Homework Help: Math

Posted by Minatsu on Sunday, April 15, 2012 at 7:11pm.

Abelardo wants to create several different 7-character screen names. He wants to use arrangements of the first 3 letters of his first name(abe, followed by arrangements of 4 digits in 1984, the year of his birth. How many different screen names can he create in this way?

A.72
B.144
C.288
D.576

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