Find the area of the triangle 5/6x base and height x

The triangles are similar. what is the value of x? x=

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.

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