Which of the following is a correct interpretation of the expression 6 - 136−, minus, 13? Choose 1

(Choice A)
A
Start at 131313 on the number line and move 666 to the left.

(Choice B)
B
Start at 131313 on the number line and move 666 to the right.

(Choice C)
C
Start at 666 on the number line and move 131313 to the left.

(Choice D)
D
Start at 666 on the number line and move 131313 to the right.

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?