Answer:
$10.50
Step-by-step explanation:
(see attached for reference)
The formula for compound interest is:
A = P [1 + (r/n) ]^(nt)
where
A = Final amount
P = Principal = $50
r = Annual interest rate = 10% = 0.1
n = 1 (because compounded annually)
t = time = 2 years
substituting this into the equation:
A = P [1 + (r/n) ]^(nt)
= 50 [ 1 + (0.1/1) ] ^ [(1)(2)]
= 50 [ 1 + 0.1] ^ 2
= 50 (1.1)²
= $60.50
Interest = Final amount - Principal
=$60.50 - $50.00
= $10.50