-What amount should Gregory invest today if she wants to receive payments of $1,200 at the end of every three months for 10 years, with the receipt of the first payment in three months? Assume the money earns 5% compounded monthly.

What is the size of the periodic payment made at the end of every three months into a fund that is growing at 5% compounded semi-annually, if the accumulated value at the end of 15 years is $25,250?

please answer both thanks