Two squares are similar. The ratio of the width of square J to the width of square M is 4:5. If the width of square J is 28 in, what is the perimeter of square M?

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