Chapter 8 - Section 8.2 - Introduction to Functions - Exercise Set - Page 587: 80

a) 3.04 billion dollars; In 2006, Boeing spent 3.04 billion dollars on research and development. b) 4.66 billion dollars

a) $R(x) = .54x+1.96$ $R(2)=.54*2+1.96$ $R(2) = 1.08+1.96$ $R(2)=3.04$ b) $2009-2004=5$ $R(x) = .54x+1.96$ $R(5) = .54*5+1.96$ $R(5) = 2.7+1.96$ $R(5) = 4.66$