A farmerplans to grow wheat and corn. Each acre of wheat requires4

hours of labor and$20

of capital, and each acre of corn requires16

hours of labor and$40

of capital. The farmer has at most800

hours of labor and$2400

of capital available. If the profit from an acre of wheat is$80

and from an acre of corn is$100

, how many acres of each crop should she plant to maximize her profit?