The number of industrial jobs in Jefferson County is decreasing by 9% per year. If there are 18,200 industrial jobs this year, estimate the number of industrial jobs , to the nearest hundred, 11 years from now.
18,200 (.91)^t gives the number of jobs after t years.....so....when t = 11, we have
18,200 (.91) ^11 = about 6449 jobs [ 6400 to the nearest hundered]
+128 
