SOLUTION: I woke up this morning and it was -12°F. By lunch time it was already 67°F. What was the difference in the temperature between the time I woke up and lunch?

Algebra ->  Average -> SOLUTION: I woke up this morning and it was -12°F. By lunch time it was already 67°F. What was the difference in the temperature between the time I woke up and lunch?      Log On