In the above figure, the monopolist's profit-maximizing output level is

The yield to maturity on a new one-year discount bond equals

A) (F V- P)/P. B) (D - FV)/P. C) (FV - P)/FV. D) (P - FV)/FV.

Which of the following is TRUE about species in the world?

A) Most extinct species became extinct within the past 30 years. B) The majority of extinct species became extinct before humans appeared. C) Extinct species became extinct only after human appeared. D) No species has ever become extinct.