2. The owner of Felt-Tip Pens David Wilson is contemplating adding a new line of Felt-Tip pens, which will require leasing new equipment for a monthly payment of $6,000. Variable costs would be $2 per pen, and pens would retail for $7 each. a. Find the break-even quantity if pens sell for $7 each . (2 points ) b. What would be profit (loss ) be if 1,000 pens are made and sold in a month ? (2 c. How many pens must be sold to realize a profit of $ 4,000 ? (3 points )