Give five examples of sources of air pollution in your community. These can be machines, factories, or human activities. 1. Suggest at least three ways to reduce or eliminate the amount of air pollution where you live.

2. What types of changes would you have to make in your own life for this to happen

(Don't answer 1.)

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?