It costs$350 to carpet an 8 ft by 10 ft room. at this rate, how many dollars would it cost to put the same carpeting in a 24 ft by 30 ft room?

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