A company makes pens. They sell each pen for $9. Their revenue is represented by R = 9 x. The cost to make the pens is $2 each with a one time start up cost of $4000. Their cost is represented by C = 2 x + 4000. a) Find the profit, P, (P = R - C) when the company sells 1000 pens. O-9000 9000 O-2000 13000 3000 X b) Find the number of pens they need to sell to break even (when R = C). O 572 2000 9800 445 X Submit Question 50 F OLD Sunny