Join my Zo0m if you want to watch Deadpool, It Chapter 2, Scream , or a Chucky movie being dead serious rn 748 9400 2925

i238AY

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?