15. Two years ago Ernest purchased a car for $34,000 and it is worth $25,000 today. Last year he drove 13,569
miles and kept a record of all his expenses. His variable costs included gasoline $1,589.56; oil changes, $245.98;
and repairs, $548.11. His fixed costs were insurance, $1,105.32; and license, $285.
What is the depreciation?
What is the cost per mile?

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

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?