$2500 is deposited in an account with an interest rate of r% per year, compounded monthly. At the end of 8 years, the balance in the account is given by A = 2500 1+ 12o 96 the nearest hundredth, if necessary. Find the rate of change of A with respect to r when r= 10. Round answer to O A. dA = 443.62 dr O B. dA %3D439.97 dr O C. dA = 203.35 O D. dA %3D201.67 dr

Find the interest rate for an $8000 deposit accumulating to $9714.83, compounded quarterly for 6 years. The interest rate is %. (Round to two decimal places as needed.)

dollars dP =- 0.727 dt year

Use the continuous compound interest formula to find the indicated value. A = $16,346; P = $10,100; t= 72 months; r= ? r= (Round to three decimal places as needed.)

The simple interest owed for the use of the money is ​$ ​(Do not round until the final answer. Then round to the nearest cent as​ needed.)

Find the accumulated amount after 4 years if $2500 is invested at 4%/year compounded continuously. (Round your answer to the nearest cent.)$

Ar. Samuels invested $2500 at 3.5% annual interest compounded continuously. How eng will it take his money to triple? Assume that there are no deposits or withdrawals uring that time. Use the formula A = Pet. In(3.5) years 3. 3(In 0.035) years 0.105 years In 3 0.035 years In 3 In 3 -years 0.035