The salvage value S (in dollars) of a company jet after t years is estimated to be given by the formula below. Use the formula to answer the questions. S(t) = 100,000(0.9)* What is the rate of depreciation (in dollars per year) after 1 year? $ -9,482.45 per year (Do not round until the final answer. Then round to the nearest cent as needed.) What is the rate of depreciation (in dollars per year) after 10 years? Derivatives of Exponential and Logarithmic Functions d CX For b > 0, b #1, -bx=bx In b dx dx dx 1 1 For b 0, b1, and x> 0, dx Inx=- X dx log bx= In b x An investment of $9,000 earns interest at an annual rate of 8.5% compounded continuously. Complete parts (A) and (B) below. Click the icon to view the derivatives of exponential and logarithmic functions. (A) Find the instantaneous rate of change of the amount in the account after 3 year(s). (Round to two decimal places as needed).