A firm offers terms of 1/10, net 30 a. What effective annual interest rate does the firm earn when a customer does not take the discount? (Use 365 days a year. Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16)) Effective annual interest rate b. What effective annual interest rate does the firm earn if the terms are changed to 2 10, net 30, and the customer does not take the discount? (Use 365 days a year. Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16)) Effective annual interest rate c. What effective annual interest rate does the firm earn if the terms are changed to 1/10, net 60, and the customer does not take the discount? (Use 365 days a year. Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16)) Effective annual interest rate d. What effective annual interest rate does the firm earn if the terms are changed to 1 15, net 30, and the customer does not take the discount? (Use 365 days a year. Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16)) Effective annual interest rate