Question: Bob is running a race. Between time t = 0 min and t = 20 min, his speed is 5 miles an hour, between time

Bob is running a race. Between time t = 0 min and t = 20 min, his speed is 5 miles an hour, between time t = 20 min and t = 30 min, his speed is 6 miles an hour. How far has he run

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