Question: A computer user has downloaded 20 songs using an online file-sharing program and wants to create a CD with eight songs to listen to in

A computer user has downloaded 20 songs using an online file-sharing program and wants to create a CD with eight songs to listen to in his car. If the order that the songs are placed on the CD is important to him, how man different CDs could he make from the 20 songs available to him?

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