. A person wants to buy a piece of land after 12 years. The current price of the land is $300,000. Inflation rate is 4%. He wants to save by making semiannual deposits at an interest rate of 14%.

1. Compute the amount of the payments.
2. During the 12 years, he withdrew $3,000 end of year three, $5,000 end of year seven, and he deposited $11,000 end of year nine.

Compute the last two payments