Question 478665
year		life expectancy					
1960		71.1	years				
2008		79.9	years				
Difference							
48		8.8					
Increase in life expectancy per year =			8.8	/	48	=	0.18
							
F(t)=	71.1	+	0.18	t 			
							
2010	t=	50					
							
F(t)=	71.1	+	0.18	*	50		
							
F (	2010	)=	80.27	years