A wheat farmer is converting to corn because he believes that corn is a more lucrative crop. It is not feasible for him to convert all his acreage to corn at once. He is farming $100$ ac current year and is increasing that number by $10$ acres per year. As he becomes more experienced in growing corn, his output increases. He currently harvests iso bushels of corn yeld is increasing by $4$ bushels per acre per year. When both the increasing acreage and the increasing yield are considered, how rapidly is the total number of Bushels of corn curr

$q,$ bushels per year