Question
Mary started her cello lesson 30 minutes before 8.00 a.m..The cello lesson lasted 1 hour and 20 minutes. At what time did she finish her cello lesson?
3 m

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Mary started her cello lesson 30 minutes before 8.00 a.m..The cello lesson lasted 1 hour and 20 minutes. At what time did she finish her cello lesson?