How was Current market Value of Bond Calculated?

How was Zero Coupon due in 8 years calculated?

Question 1 - Bonds and Convertible Securities - 50 marks - Please use the information below to answer the questions that follow. General Motors in Detroit is about to issue a new series of bonds. Assume General Motors is rated Baa3 by Moody's; the rating is the lowest investment grade rating Moody's has, defined as "medium-grade and subject to moderate default risk and as such may possess certain speculative characteristics." Use the information below