just show me how you do it, I don't need explaining

3. If $12,000 is invested in an account that earns 3.95% compunded continuously, find the instantaneous rate of change of the amount when the account is worth $25,000. 1 th 1325 Final Exam Name 4. A company manufactures and sells x e - book readers per month. The monthly cost and price - demand functions are: C(x) = 350x + 50,000 p = 500 - 0.025x 0 s x $ 20,000 A) Find the maximum revenue B) How many readers should the company manufacture each month to maximize profit? What is the maximum monthly profit? How much should the company charge for each reader