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Amr recorded the outdoor temperature as -4 degrees Fahrenheit at 7:30 A.M. At noon, it was 22 degrees Fahrenheit. Sal said the temperature changed by 18 degrees Fahrenheit because 22 - 4 = 18
(My answer is 26 for this question.)

What was the total temperature change from 7:30 A.M until noon? Use the thermometer to help justify your solution.