Davids middle son is always asking him for money. He has decided to set up an annuity for which a lump sum paid by Dad today will provide the son with $50,000 at the end of each year for the next 10 years. The rate of return for low-risk investments such as this annuity is 4.00%. CF Timeline:

a. How much will David have to pay for the annuity?

b. What would be the difference in price if David allows the annuity payment to be disbursed to his son at the beginning of the year instead? c. Do you think Davids son will stop asking him for money? (extra credit)