PLEASE HELP ILL MARK BRAINLIEST

Simplify the expression.
(a + 2b)3 – 3a

Plz need answer now will mark which situations represent linear functions? check all that apply. a)the temperature rises and falls over the course of a day. temperature is a function of time. b)a baseball is hit into the outfield. the height of the ball is a function of time. c)a car goes 55 mph on the highway. distance is a function of time. d)a child grew 2 inches this year and 1 inch last year. height is a function of time. e)a movie director makes 2 movies per year. the number of movies is a function of the years.

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers