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Rosa has decided to invest $9000 each year into an annuity. If the account pays interest at a rate of 10 percent compounded continuously, find Rosa's account balance after 10 years. Round intermediate answers to eight decimal places and nal answer to two decimal places. AnswerHow to enter your answer (opens in new window) 2 Points Keypad Keyboard Shortcuts Find the present value of an income stream with R(t) = 200 t, r = 12 percent, and T = 10. Round any intermediate calculations to no less than six decimal places, and round your nal answer to two decimal places. Answer 2Points E Keypad Keyboard Shortcut Find the value of an income stream after 19 years ifR(t) = 1500(30'05' is the rate of flow of revenue and the income is deposited at a rate of 5 percent compounded continuously. Round intermediate answers to eight decimal places and nal answer to two decimal places. AnswerHow to enter your answer (opens in new window) 2 Points E Keypad Keyboard Shortcuts Find the present value of an income stream with R(t) = 700 + 0.8t, r = 10 percent, and T = 17. Round intermediate answers to eight decimal places and final answer to two decimal places. AnswerHow to enter your answer (opens in new window) 2 Points Keypad Keyboard Shortcuts The value of a machine depreciates at a rate of - 210t(t + 1)- dollars per year, where t is the age (in years) of the machine. If the original cost of the machine is $850, find a function for the value of the machine when it is t years old. Answer 1 Point Keypad Keyboard Shortcuts f (t) = dollars