The table shows population data for a community
a.) what is the percent change from 2007 to 2013? (the answer for 'a' is 6.9; i already know a and i am looking for b)
b.) use this percent change to predict the population in 2009

in 2007, the population was 118,000
in 2013, the population was 138,000

can anyone me with letter b?

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?