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2. -12 Points 4.013. MY NOTES PRACTICE ANOTHI Suppose $60,000 is invested in an account that returns 7% per year compounded continuously. (Round your answers to one decimal place.) (a) How long will it take for the investment to double? (D) How long will it take for the investment to triple? yr Need Help? Wanh Additional Materials Book 3. [-/1 Points) DETAILS FDPRECALC5 5.4.015. MY NOTES PRACTICE ANOTHER An initial investment of $20,000 is made in an account where interest is compounded continuously. If the investment is to grow to $50,000 in 8 years, what is the required interest rate? (Round your answer to the nearest whole number.) Need Help? Www