1. Dillon is fencing a rectangular pasture. the length and width of the pasture are related according to a specific formula. He developed this table to see how many total feet of fencing he will need for pastures with different dimensions. Which equation could Dillon use to calculate the total number of feet of fencing, t, in terms of different pasture widths, w?
Width (in feet) - 15, 16, 17, 18, 20, 24
Length (in feet) - 23, 25, 27, 29, 33, 41
Total fencing (in feet) - 76, 82, 88, 94, 106, 130
a. t 5 2(w 1 w 1 8)
b. t 5 w 1 2w 2 7
c. t 5 2w 1 2w 2 7
d. t 5 2(w 1 2w 2 7)

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?