Urgent: ms. williams was born in december of 1985 and started first grade when she was 7. in what year did she take the 10th grade mcas? answer and include an explanation on how you figured it out.

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?