Find the present values of these ordinary annuities. Discounting occurs once a year. Do not round intermediate calculations. Round your answers to the nearest cent.

$500 per year for 16 years at 8%.

$250 per year for 8 years at 4%.

$600 per year for 8 years at 0%.

Rework previous parts assuming they are annuities due.

Present value of $500 per year for 16 years at 8%:

Present value of $250 per year for 8 years at 4%:

Present value of $600 per year for 8 years at 0%: