Answer:
d. 7%
Step-by-step explanation:
Calculation to Determine the average annual rate of return on Shawn's investment
Using this formula
A=P(1+r/100)^n
where,
A=future value
P=present value
r=rate of interest
n=time period.
Let plug in the formula
30=20(1+r/100)^6
(30/20)^(1/6)=1+r/100
Hence,
1+r/100=1.0699(Approximate ly)
r=(1.0699-1)*100
r=0.0699*100
r=7% Approximately
Therefore the average annual rate of return on Shawn's investment is 7%