Rhett purchased a 13% zero-coupon bond with a 15-year maturity and a $20,000 par value 15 years

Question:

Rhett purchased a 13% zero-coupon bond with a 15-year and a $20,000 15 years ago. The bond matures tomorrow. How much will Rhett receive in total from this investment, assuming all payments are made on these bonds as expected?
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... Par Value
Par value is the face value of a bond. Par value is important for a bond or fixed-income instrument because it determines its maturity value as well as the dollar value of coupon payments. The market price of a bond may be above or below par,...