Question 309369
The correct formula is A = P(1+r/n)^(nt), where A is the accumulated capital, P is the present value of the investment (14,000 in your example), r is the rate (expressed as a decimal, for example 0.10 for 10%), n is the number of times interest is compounded per year (2 in your example for every 6 months and there are TWO six months in one year), and t is the number of years of the invested (11 in your example).

Just plug and solve using a calculator.

A = 14,000[(1 + 0.10)/2]^(2*11)

Can you do it now?