V0 = 5750 is the initial investment v2 = 6080 is the value after 2 years
Plug those values into the given formula and then use a calculator r = sqrt(v2/v0) - 1 r = sqrt(6080/5750) - 1 r = sqrt(1.05739130434782) - 1 r = 1.02829533906743 - 1 r = 0.02829533906743 r = 0.028 r = 2.8%
