please help me figure out how to calculate these

QUESTION 2 AXE Co. offers terms of 3/5, net 20. What is the annual percentage rate (APR) AXE Co. earns when a customer does not take the discount? Assume 360 days a year 45.79% 56.48% 65.73% 74.23% QUESTION 3 Efin Co. offers terms of 2/10, net 30. What is the effective annual rate (EAR) Efin Co. carns when a customer does not take the discount? Assume 360 days a year. 32.96% 36.73% 43.86% 46.38%