Someone help meee pls plss pls

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?

Alogical argument that is presented in graphical form using boxes and arrows is called?

What is 1.5% of 120 or what number is 1.5% of 120