The product of 7 and x is less than or equal to -21

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

Which rule describes the composition of transformations that maps △abc to △a”b”c

What are the greatest common factor of 75 and 30