If a shape is rotated around the origin 180°, how does its area change? A The shape's area doubles from its original size. B The shape's area is half its original size The shape's area changes an unknown amount. D The shape's area remains congruent to its original size. Please help im in a test!!

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?