A PLANE IS FLYING AT 30,000 FEET AND NEEDS TO RISE TO 36,000 FEET IN 2 STAGES. a) IN STAGE 1, IT RISES 5% OF ITS INITIAL ALTITUDE OF 30,000 FEET.. b) IN STAGE 2, IT RISES AT A RATE OF 140 FEET PER MINUTE. HOW MANY MINUTES DOES IT TAKE FOR THE PLANE TO RISE TO 36,000 FEET IN STAGE 2 ? SET THIS UP WITH AN EQUATION