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OpenStudy (anonymous):
A disc jockey must allow time for 24 minutes of commercials every hour, along with 4 minutes for news, 3 minutes for weather, and 2 minutes for public-service announcements. If each record lasts and average of 3 minutes, how many records per hour can the DJ play? a. 3 records per hour c. 9 records per hour b. 6 records per hour d. 12 records per hour
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OpenStudy (anonymous):
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