[10 marks] Caitlin has returned from Germany and has decided to started a business selling speciality cookies - Bettmanchen. [5 marks] (a) She has weekly fixed costs of $2,000. The average cost of importing these cookies is $1 per cookie. She sells Bettmanchen cookies in packs of 5 for $12. How many Bettmanchen cookies does she need to sell to break even? [5 marks] (b) Each pack of cookies sold incurs a tax of 20%%. What would be the total net profit or loss if 2000 cookies (400 packs) were sold