Refer to the problem 4, State how much money each person had at the start of the competition. (Assume each is following a linear function in his or her saving habit.

—the graph shows how fast a strand of human hair grows. how many inches would the hair have grown in 5 months

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.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?