A farmer has 1,280 acres of land on which he grows corn, wheat, and soybeans. It costs $45 per acre to grow corn, $60 to grow wheat, and $50 to grow soybeans. Because of market demand the farmer will grow twice as many acres of wheat as of corn. He has allocated $68,350 for the cost of growing his crops. How many acres of each crop should he plant?

corn ____ acres

wheat ____ acres

soybeans ____ acres