You are working with a firm that manufactures golf balls. Currently they are selling 13000 balls per month. They want to raise the price of balls for next year. Studies have shown that for every dolla

You are working with a firm that manufactures golf balls. Currently they are selling 13000 balls per month. They want to raise the price of balls for next year. Studies have shown that for every dollar per carton they raise the price, demand goes down by 1100 balls. If they raise the price of a 12-ball carton from $4 to $5, what should their income from ball sales be in coming months?