in the beginning of 1990, the world population was about 5.3 billion, and in the beginning of 2000, the population was approx 6.1 billion. determine the rate of growth from 1990 to 2000

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.

15 point ! ~ see if you know the answer to both you!

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?