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.

1. $500 per year for 10 years at 4%.

   $

2. $250 per year for 5 years at 2%.

   $

3. $500 per year for 5 years at 0%.

   $

4. Rework previous parts assuming they are annuities due.

   Present value of $500 per year for 10 years at 4%: $

   Present value of $250 per year for 5 years at 2%: $

   Present value of $500 per year for 5 years at 0%: $