Use the following information for the next 3 questions. Metro Health & Spa offers three membership programs: Platinum, Gold and Silver. Metro incurs annual fixed costs of $19,200,000 Additional information about the programs is presented below Platinum Gold Silver 30,000 150,000120,000 $2,500 $1,000 $800 Variable cost per membership $1,000 $500 $200 Memberships sold Membership price 13. What is the weighted-average unit contribution margin? 14. Assuming that the sales mix of memberships remains constant, what is the total number of memberships that the company must sell to break even? 15. What is the break-even point (in memberships) for the "Gold" membership