Sam needs edging for a rectangular flower bed. The flower bed will be 10 feet by 3.5 feet. She knows the perimeter is found using the expression 2l+2w, or 2(l+w). How many feet of edging should Sam buy

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 speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left