A firm offers terms of 1.8/10, net 60.

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. Enter your answer as a percent rounded 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 2.8/10, net 60, and the customer does not take the discount? (Use 365 days a year. Do not round intermediate calculations. Enter your answer as a percent rounded 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 1.8/10, net 75, and the customer does not take the discount? (Use 365 days a year. Do not round intermediate calculations. Enter your answer as a percent rounded 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 1.8/15, net 60, and the customer does not take the discount? (Use 365 days a year. Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)

Effective annual interest rate

%