If a car gets 25 miles per gallon, how much does it cost to drive 310 miles when gasoline costs $3.10 per gallon? The cost is $
{Round to the nearest cent as needed.)

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