The table below lists the annual amount (in billion of dollars) spent by the federal government on research programs at universities and related institutions.

Year	1995	1998	2000	2003	2005
Amount (billion dollars)	15.5	20	23.5	27.3	30.4

1. Letx=0represent the number of years since 1995. Use the calculator to find a linear model for the data. Round the answer to three decimal places.
2. Use the model from a to find the amount spent on research programs in 2002. Round the answer to the nearest thousandth and write out units.