12. A young couple is planning to buy a house at some time in the future. In order to save money for the down payment, they make a monthly deposit of...

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12. A young couple is planning to buy a house at some time in the future. In order to save moneyfor the down payment, they make a monthly deposit of $513 into an account paying 6 % interest compounded monthly. prayments are made at the end of each period, how muchmoney will there be at the end of 8 years? 95 13. The population on the planet Inspiron has been growing at a rate of 4.7% (compounded continuously). Assuming that the rate of growth will remain the same, how long will it take forthe population to triple? 14. Samuel has invested his savings in an account paying 4.5 % compounded continuously. Howlong will it take for him to double his investment?