Concept:The effective annual rate converts nominal interest compounded multiple times a year into an equivalent yearly rate.Explanation:Nominal rate r=6%=0.06, compounded semi‑annually, so n=2.Effective rate =(1+nr)n−1.(1+20.06)2−1=(1+0.03)2−1=(1.03)2−1=1.0609−1=0.0609.Convert to percentage: 0.0609×100%=6.09%.Answer:6.09%