Solve for the unknown number of years in each of the following: (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.)

Present Value				Years			Interest Rate				Future Value
	$	850						11	%			$	1,705
		2,541						9					4,300
		34,005						14					393,120
		33,700						21					216,356
Next Question: Assume the total cost of a college education will be $360,000 when your child enters college in 15 years. You presently have $58,000 to invest. What annual rate of interest must you earn on your investment to cover the cost of your childs college education? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Annual rate %

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