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A thermometer reading `61^\circ` 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 `256^\circ` F after `1/2` minute and `336^\circ` F after 1 minute. How hot is the oven?
Round answer to the nearest multiple of 10.
Round answer to the nearest multiple of 10.
Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity