What is the missing step in the given proof?
a.
∠pqc and ∠acp are supplementary by the linear pair theorem.
b.
for parallel lines cut by a transversal, corresponding angles are congruent, so ∠acb ≅ ∠pcq.
c.
∠ocp ≅ ∠bcd by the vertical angles theorem.
d.
for parallel lines cut by a transversal, corresponding angles are congruent, so ∠ocp ≅ ∠abc.
e.
for parallel lines cut by a transversal, corresponding angles are congruent, so ∠oca ≅ ∠cbd.

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?