A difference is density between gases creates buoyancy. At 0 degrees Celsius helium has a density of .18 kg/m cubed. At 0 degrees Celsius regular air has a density of 1.29 kg/m cubed. In kgs how much mass can a cubic meter of helium float in regular air at 0 degrees Celsius?

Find the sum to the equation 3+6+9+

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.

Write a corresponding real world problem to represent 2x - 125=400