Solve for x.
4 - (2x + 4) = 5

a. x = 3/2
b. x = 6
c. x = -5/2
d. x = -10

Find the solutions for a triangle with a =16, c =12, and b = 63º

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?

Which of the following is the result of expanding the series