1. The following are the prices paid for the American televi- sion broadcasting rights of the summer Olympics since 1980: Moscow-NBC agreed to pay $85 million; 1984 in Los Angeles-ABC paid $225 million; 1988 in Seoul-NBC paid $300 million; 1992 in Barcelona-NBC paid $401 million; 1996 through 2008-NBC will pay $3.6 billion; 2010-NBC paid $820 million; 2012 in London-NBC will pay $1.18 billion for its American broadcast rights. Most recently NBC has purchased the U.S. broadcast rights to all the Olympic Games through 2020 for $4.38 billion. Assume