Use inverse properties to simplify each expression

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?

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.