can anyone explain present value to me? i dont undersrand how to solve that part!

Current Attempt in Progress Wildhorse Inc. has issued three types of debt on January 1, 2020, the start of the company's fiscal year. $10 million, 12-year, 14% unsecured bonds, interest payable quarterly. Bonds were priced to yield 10%. $29 million par of 12-year, zero-coupon bonds at a price to yield 10% per year. $15 million, 12-year, 8% mortgage bonds, Interest payable annually to yield 10%. (a) Your answer is partially correct. (b) (c) Prepare a schedule that identifies the following items for each bond: (1) maturity value, (2) number of interest periods over life of bond, (3) stated rate per each interest period, (4) effective-interest rate per each interest period, (5) payment amount per period, and (6) present value of bonds at date of issue. (Round stated and effective rate per period to 2 decimal places, eg. 10.25%. Round present value factor calculations to 5 decimal places, eg. 1.25124 and the final answer to 0 decimal places eg. 58,971.) (1) Maturity value Number Unsecured Bonds 10000000 Zero-Coupon Bonds DELL 29000000 $ Mortgage Bonds 15000000 Question 5 of 10 (1) (2) (3) Maturity value Number of interest periods (5) (6) Stated rate per period Effective rate per period Payment amount per period Present: value