Westerly Industries has the following financial information. What is its cash conversion cycle? (Hint: Use a 365-day year.)

Sales	$100,000
Cost of Goods Sold	80,000
Accounts Receivable	30,000
Inventory	15,000
Accounts Payable	40,000

1. (4 points) a) At an (actual) annual inflation rate of 2.4%, how much will a 49 postage stamp in 2016 cost in the year 2026? b) What (actual) annual inflation rate would make a 49 postage stamp in 2016 cost 65 in the year 2026? c) With an (actual) rate of increase of 6.4% per year, how long before your college tuition doubles? d) How much money invested today at an (nominal annual interest rate ) APR of 3.5% will be worth $500,000 in 50 years. Assume monthly compounding- 2. (6 points) Suppose that you have been offered one of three options by a very generous person. Qption 1: Option 2: Five hundred thousand dollars will be deposited in an account today. One thousand dollars will be deposited in an account today and an additional two thousand dollars will be deposited each day for a year. Six thousand dollars will be deposited in an account today and the total value of the account will increase by 50% each month for one year. Option 3: Write an algebraic formula for each option. b For what time period is each option the best deal? Explain graphically. c) Give the coordinates of the view window which shows a complete graph for all three options simultaneously. Sketch the graph. 3. (4 points) The radioactive isotope Cobalt-60 (Co-60) has a half-life of 5.4 years. a) What percent is left in 12 years. b) When is 60% left?