Kelli Y. answered 09/28/17
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Physics/Chemistry Tutor
Assuming you are in Fahrenheit, you start the morning with 14F below zero which means that it is -14F. By noon, the temperature has risen 72F. Therefore, to find the temperature at noon, you add 72F to -14F:
72F + -14F = 58F
At noon, the temperature in Montreal was 58 degrees Fahrenheit.