Answer:
10 years
Explanation:
A = P(1 + r)^n
A (amount) = $10,000
P (principal) = $4,500
r = 8.25% = 0.0825
10,000 = 4,500(1 + 0.0825)^n
10,000/4,500 = 1.0825^n
2.22 = 1.0825^n
Log 2.22 = Log1.0825^n
nLog1.0825 = Log2.22
n = Log2.22/Log1.0825 = 0.3464/0.034 = 10 years (to the nearest year)