Angelluis spent $64.80 on six cheeseburgers. How did each cheeseburger cost?

Find the roots of the equation below. x^2 - 6 + 9 = 0

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 inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4