Recently, a certain bank offered a 10-year CD that earns 2.5% compounded continuously. Use the given information to answer the questions. (a) If $20,000 is invested in this CD, how much will it be worth in 10 years? approximately $ (Round to the nearest cent.) (b) How long will it take for the account to be worth $70,000? approximately years (Round to two decimal places as needed.)