Company X sells on a 2/15, net 90, basis. Company Y buys goods with an invoice of $3,500.

a. How much can company Y deduct from the bill if it pays on day 15?

b. How many extra days of credit can company Y receive if it passes up the cash discount?

c. What is the effective annual rate of interest if Y pays on the due date rather than day 15? (Use 365 days in a year. Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.)