The graph shows the projections in total enrollment at degree granting institutions from Fall 2003 to Fall 2012. Enrollment (in millions) 25- 15.7 16.1 16.2 16.3 16.4 16.6 17.1 17.2 17.3 17.6 03 04 05 06 07 08 09 10 11 12 The linear model, y=.2006x + 15.75, provides the approximate enrollment, in millions, between the years 2003 and 2012, where x = 0 corresponds to 2003, x=1 to 2004, and so on, and y is in millions of students. (a) Use the model to determine projected enrollment for Fall 2008. The projected enrollment for Fall 2008 is 16.8 millions. (Type an integer or decimal rounded to the nearest tenth as needed.) (b) Use the model to determine the year in which enrollment is projected to reach 17 million. (Round down to the nearest year.)