A firm offers terms of 3.0/7, net 30

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))

What effective annual interest rate does the firm earn if the terms are changed to 4/7, 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))

What effective annual interest rate does the firm earn if the terms are changed to 3/7, net 45, 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))

What effective annual interest rate does the firm earn if the terms are changed to 3/12, 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))