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b. Neena wants to accumulate $18,000 in a fund earning 3.6% compounded semi-annually. How much must she deposit at the end of each year for eight years? (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) C. How long will it take to save $17.000 by making deposits of $85 at the end of every month into an account earning interest at 9.1% compounded semi-annually? State your answer in years and months (from 0 to 11 months)