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.

$$700$ per year for $12$ years at $6\%.$

$

$$350$ per year for $6$ years at $3\%.$

$

$$700$ per year for $6$ years at $0\%.$

$

Rework previous parts assuming they are annuities due.

Present value of $$700$ per year for $12$ years at $6\%$: $

Present value of $$350$ per year for $6$ years at $3\%$: $