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Mathematics, 23.03.2021 04:20 donnafranks2003

Frank started practicing his trumpet at 4:30 pm and finished at 6:00 pm. How long did he practice? A. 2 hours and 30 minutes
B. 2 hours
C. 30 minutes
D. 1 hour and 30 min

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Frank started practicing his trumpet at 4:30 pm and finished at 6:00 pm. How long did he practice?...
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