If 12,000 is deposited in an account bearing 6.4% interest compounded continuously, how much will be the account in 12 years?

Total = Principal * e ^ (rate * years)
where "e" = 2.718281828459
Total = 12,000 * 2.718281828459^(.064 * 12)
Total = 12,000 * 2.718281828459^(.064 * 12)
Total = 12,000 * 2.718281828459^(.768)
Total = 12,000 * 2.1554510379
Total = 25,865.41
Here's a calculator to check that:
http://www.1728.org/compint.htm