A thermometer reading 70° F is placed in an oven preheated to a constant temperature. Through a glass window in the oven door, an observer records that the thermometer reads 110° F after 2 minute and 145° F after 1 minute. How hot is the oven? °F

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A: The given diagram is

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A:

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A: Image is attached with detailed solution.

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A:

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A: