Answer
a. $25.5\%$
b. $5.7\%$
c. $8.4\%$
Work Step by Step
a. Use the geometric mean formula:
geometric mean growth rates=$\sqrt[3] {135\times124\times118}-100=125.5-100=25.5$ percent
b. geometric mean raises in salary=$\sqrt[4] {108\times106\times104\times105}-100=105.7-100=5.7$ percent
c. geometric mean stock increase=$\sqrt[5] {110\times108\times112\times109\times103}-100=108.4-100=8.4$ percent
