Annual revenue billions for the Boeing Corporation from 1990 to 2002 is given by R t 1 t 2 2 80 Annual revenue billions that Boeing made just from sales of its 737 airplane in the same period is given by A t 0 22 t 8 30 Note t 0 is January 1 1990 In what year and month was annual revenue excluding sales of 737s at a minimum March Xo November 1996 What was that minimum revenue in billion year 52 x 56 9 nearest 0 1 billion year