8. If b(x) = -2(x-50), what is the value of
b(20)? Request

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?

Write the standard form of an equation with (see picture below)

Which shows one way to determine the facts of x3+4x2+5x+20 by grouping