4x − 8 = 12

4x − 8 + 8 = 12 + 8
4x = 20

4/4 x = 20/4

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review

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?

Determine the standard form of the equation of the line that passes through (-2,0) and (8,-5)