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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? Note: Do not round intermediate colculations and enter your onswer as a percent rounded to 2 decimal places, e.g., 3216 . b. What effective annual interest rate does the firm earn if the discount is changed to 2 percent? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16. c. What effective annual interest rate does the firm earn if the credit period is increased to 45 days? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16 . d. What effective annual interest rate does the firm earn if the discount period is decreased to 14 days? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16. 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? Note: Do not round intermediate colculations and enter your onswer as a percent rounded to 2 decimal places, e.g., 3216 . b. What effective annual interest rate does the firm earn if the discount is changed to 2 percent? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16. c. What effective annual interest rate does the firm earn if the credit period is increased to 45 days? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16 . d. What effective annual interest rate does the firm earn if the discount period is decreased to 14 days? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16