Find the present values of these ordinary annuities. Discounting occurs once a year. Do not round intermediate calculations, Round your answers to t hearest cent. a. $800 per year for 12 years at 6%. 5 b. $400 per year for 6 years at 3%. c. $200 per year for 6 years at 0%. 5 d. Rework previous parts assuming they are annuities due. Present value of $800 per year for 12 years at 6%:$ Present value of $400 per year for 6 years at 3%:$ Present value of $200 per year for 6 years at 0%:$