1. Sangarwe will deposit $300 every quarter into an investment annuity earning 4.5% compounded quarterly for seven years. What is the difference in the amount of money that she will have after seven years if payments are made at the beginning of the quarter instead of at the end?
2. Canseco wants to have enough money so that he could receive payments of $1,500 every month for the next nine-and-a half years. If the annuity can earn 6.1% compounded semi-annually, how much less