Find the present values of these ordinary annuibies. Discounting occurs once a year. Do not round intermediate calculotions. Round your answers to the nearest cent. a. 5700 per yar for 12 years at 6% 4 b. $350 per year for 6 years at 4%. 5 c. 3800 per year for 6 years at 0W. 3 d. Rework previous parts assuming they are annuibes due. Present value of 1700 per year for 12 years at B\$1 5 Present value of $350 per year for 6 years af 4% : 5 Present value of $800 per year for. 6 years at o4s: 5