(a) A deposit of $550 is made in a savings account that pays an annual interest rate of 1% compounded monthly. What is the balance after 11 years? (b) How large a deposit, at 5% interest compounded continuously, must be made to obtain a balance of $10,000 in 15 years? (c) A deposit earns interest at a rate of r percent compounded continuously and doubles in value in 10 years. Find r.

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