Assuming they sell $400,000$ pens a month, what is the minimum amount they can sell the

pens for to break even?

How much profit do they make if they make and sell $300,000$ pens a month? $500,000$ pens a

month? Assume a $75$ cent selling price.

How much do they need to raise the price of pens, if they want to make $$75,000$ profit a

month? $($Assume they are selling $400,000$ pens$).$