Find the present values of these ordinary annuities. Discounting occurs once a year. Round your answers to the nearest cent.

a. $300 per year for 10 years at 12%.

b. $150 per year for 5 years at 6%.

c. $800 per year for 8 years at 0%.

Rework previous parts assuming that they are annuities due. Round your answers to the nearest cent.

d. $300 per year for 10 years at 12%.

e. $150 per year for 5 years at 6%.

f. $800 per year for 8 years at 0%.