Choose the one expression below that is true. A. (5 + 4) + 10 = 5 + (4 + 10)

B. 12 - (17 + 1) = (12 - 17) + 1

C. (5 - 4) + ha = 5 - (4 + 10)

D. 17 - (9 + 10) = (17 - 9) + 10

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?