HELP PLEASE HELP ME I NEED HELP what is a solution that you could provide to help your family, school, or community using STEM (science, technology, engineering, and math)?

Average acceleration: i have no idea how to do this.

I'm confused on this could anyone me and show me what i need to do to solve it.

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters