There are 6+4=<<6+4=10>>10 songs on the tape.

In total, the time is 10*4=<<10*4=40>>40 minutes.

# Answer

40
Question:
Bart makes a mixtape.  The first side has 6 songs.  The second side has 4 songs.  Each song is 4 minutes.  How long is the total tape?
Answer:
Let's think step by step.

user
40
Bart makes a mixtape.  The first side has 6 songs.  The second side has 4 songs.  Each song is 4 minutes.  How long is the total tape?
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