# Continuous growth and decay

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##### Examples

###### Lessons

- On Aiden's 10-year-old birthday, he deposited $20 in a savings account that

offered an interest rate of 4% compounded continuously. How much money

will Aiden have in the account when he retires at the age of 60?

- A radioactive substance decays continuously. If the half-life of the substance

is 5 years, determine the rate of decay.