Find the proceeds of a 15-year promissory note discounted after 6 years at 9% compounded quarterly with

Question:

Find the proceeds of a 15-year promissory note discounted after 6 years at 9% compounded quarterly with a value of $7500.
Maturity
Maturity is the date on which the life of a transaction or financial instrument ends, after which it must either be renewed, or it will cease to exist. The term is commonly used for deposits, foreign exchange spot, and forward transactions, interest...