In 1989, research scientists published a model for predicting the cumulative number of AIDS cases reported in the United States: a(t) = 155 t 1980 10 3 , (thousands) where t is the year. This paper was considered a "relief," since there was a fear the correct model would be of exponential type. Use the two data points predicted by the research model a(t) for the years 1988 and 1999 to construct a new exponential model b(t) for the number of cumulative AIDS cases. (Round values to three decimal places.)