People use water to cook, clean, and drink every day. An estimate of 19.4% of the water used each day is for cooking. If a family uses 67.9 gallons of water a day for cooking, how many gallons do they use every day?

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