Zero Coupon Bond Formula Constant Annuity Bond Pricing Formula?

Constant annuity bond pricing formula? - zero coupon bond formula

(a) establish and declare the permanent pension bond pricing formula, shows how the console and derived the zero-coupon bonds of this formula is as special cases.

(c) Explain how to influence the market interest rate, the rediscount rate, face value, the time until the price for the maturity of a bond.

establish (b) the formula in practice, if a band the right price? To discuss.

Thanks for any help you can give me! I need it as soon as possible please =)