7.5 points A gentleman bought a limited-edition Wolverine figurine in 1974 for $0,15, In 2012, 38 years later, he sold it for $36,900. What return did he earn per year over those 38 years? Round your answer to the nearest hundredth of a percent. For example, enter 7% as 7.00 or 6.625% as 6.63 . Type your answer. 2 points Identify the correct formula used in the previous problem. $0.15=(1+r)14536.300$36,90033s=$0.15(1+r) 50.15=r13600 $36,900=r1014 536,900=7421210.15 80.15=6.12r136.060