Algebra 2

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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

  • Algebra 2 -

    The 'abe' can be arranged in 3! or 6 ways
    the '1984' can be arranged in 4! or 24 ways

    number of arrangements = ????

    what do you think?

  • Algebra 2 -

    It's 144

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