1. Solve for the unknown interest rate in each of the following. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.)

Present value	years	interest rate	%	Future value
530		8	%	1166
780		12		1975
18100		18		314892
21200		14		338250

2. For each of the following, compute the present value: (show the formula)

Present value	years	interest rate	%	Future value
	13	9	%	15451
	4	7		51557
	29	24		886073
	40	35		550164