Final answer:
The smallest number of people that can be in the music class is 24.
Step-by-step explanation:
To find the smallest number of people that can be in the music class, we need to find the least common multiple (LCM) of 8 and 12. The LCM is the smallest number that is divisible by both 8 and 12. In this case, the LCM is 24.
Therefore, the smallest number of people that can be in the music class is 24.
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