Final answer:
The question probably pertains to a financial account growing at an interest rate of 3.3% annually and involves calculating future value using compound interest. The formula A = P(1 + r/n)^(nt) is used for such calculations, demonstrating the exponential growth of the investment over time.
Step-by-step explanation:
If an account is increasing at a rate of 3.3, it most likely refers to a financial account growing at an interest rate of 3.3% annually. When calculating the future value of an investment or savings, you would employ the concept of compound interest. Compound interest is calculated using the formula A = P(1 + r/n)^(nt), where A is the amount of money accumulated after n years, including interest, P is the principal amount (the initial sum of money), r is the annual interest rate (decimal), n is the number of times that interest is compounded per year, and t is the time the money is invested or borrowed for, in years.
For example, an economy that grows at 3% per year, starting with a GDP of 100, would reach a GDP of 209 after 25 years; that is, 100 x (1.03)^25 = 209. This illustrates the power of exponential growth over time, and the same principle applies to interest growth in financial accounts.