Credit terms. Find the effective annual rate of the following credit terms: a. 2.3% discount if paid within 8 days or net within 30 days b. 1.8% discount if paid within 27 days or net within 60 days c. 0.2% discount if paid within 18 days or net within 45 days d. 0.9% discount if paid within 21 days or net within 30 days