Answer :
Final answer:
To find the total number of seconds the playlist will play, multiply the number of songs by the time per song, converting minutes to seconds.
Therefore, the correct answer is: option b) 3.99 x 10^5 seconds.
Explanation:
To find the total number of seconds the playlist will play, we need to multiply the number of songs by the time per song.
The number of songs is 1,900 and the average time per song is 3.5 minutes.
To convert minutes to seconds, we multiply by 60.
Therefore, the total number of seconds is 1,900 x 3.5 x 60 = 399,000 seconds.
In scientific notation, this can be written as 3.99 x 10^5 seconds.
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