Tina has bought a 4-gigabyte MP3 player. If each song lasts 3 minutes and is recorded at 128 kilobits per second, then how many songs can be stored on Tina's MP3 player?

A 4 GB player holding 3 minute songs at 128 kbps stores about 1456 songs.

A song is 128 kilobits times 180 seconds, giving 23040 kilobits.

Dividing by 8 converts this to 2880 kilobytes per song.

The 4 GB capacity equals about 4194304 kilobytes of space.

Dividing total space by song size yields roughly 1456 songs.

Bit rate directly sets how much space each minute of audio consumes.