Triple one number added to another number is 22. If the second number is
equal to 8 less than 2 times the first
number, find the two numbers.
First complete the equations below,
where x stands for the first number and y
stands for the second number.
3x + y = [?]; y = [ ]x-[]

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?