A number line going from 0 to 1. StartFraction 5 Over 6 EndFraction is labeled on the line. Luke has a board 5 6 of a yard long. He needs to cut the board into 5 equal sections. Use the expression to find the length of each section. Each section is yard long.

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?