Calculate

1.You would like to have $21037 in 14 years. If the rate is 9.63%, how much do you have to invest each month?

2.Your grandfather has an annuity that is worth $93994 today. It will give him monthly payments for 23 years. If the rate is 3.85%, what will be his monthly payment?

3.Your mother has an annuity that will give her monthly payments for 11 years. She tell you it is worth $112662 today. If her required return is 8.25%, what is the monthly payment?