Ms. Lopez deposits $ 140 in an account that pays 20% interest, compounded semiannually. How much money will there be in the account at the end of one year? Choose the correct choice from the following answers.
A) $ 118.00
B) $ 120.00
C) $ 169.40
D) $ 122.00
E) $ 140.00

Rationale: using formula - a = p ( 1 + r / n ) ^ nt given p = 140 n = 2 t = 1 r = 0.2 substituting value in formula a = 140 ( 1 + 0.2 / 2 ) ^ 2 a = 169.40 $ = c
Answer: C