13. i need help with this problem for my corporate finace class. It would be much appriected if you can show me how you got the work!

Your firm purchases goods from its supplier on terms of 1.8/14, net 30 . a. What is the effective annual cost to your firm if it chooses not to take the discount and makes its payment on da 30 ? b. What is the effective annual cost to your firm if it chooses not to take the discount and makes its payment on day 40? (Hint: Use a 365-day year.) a. What is the effective annual cost to your firm if it chooses not to take the discount and makes its payment on day 30 ? If your firm chooses not to take the discount and makes its payment on day 30 , the effective annual cost is (Round to one decimal place.) b. What is the effective annual cost to your firm if it chooses not to take the discount and makes its payment on day 40 ? If your firm chooses not to take the discount and makes its payment on day 40 , the effective annual cost is (Round to one decimal place.)