A= P (1+r/n)^nt
n= number of compounded periods per unit t = 1 ( anually)
r = interest rate = 7% = 0.07 ( decimal form)
t= number of years = 170
P= principal investment = 100
A = future value
Replacing:
A = 100 ( 1 + 0.07/ 1 )^1*170
A= 100 ( 1 +0.07) ^ 170
A = 9,891,045.66