Find the perimeter of the parallelogram with these vertices. (-2,2), (-2,-2), (3,-2), (3,-6) Give an exact answer (not a decimal approximation). Simplify your answer as much as possible.

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

What can you determine about the solutions of this system

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?