1. A perpetuity earning 3.50% compounded semi-annually is started with a $161,000.00 investment. How much money could be regularly withdrawn from the investment every 6 months?

2. Juan invested his savings in a bank at 5.00% compounded quarterly. How much money did he invest to enable withdrawals of $2,500 at the beginning of every 6 months from the investment for 7 years, if the first withdrawal is to be made in 9 years?