In his spare time, Jack builds birdhouses and sells them. He charges 7 dollars per birdhouse. Using this information, complete the rate chart below.

Number of Birdhouses Sold 20 24 28 32 36
Earnings
(in dollars) 140 168 196 224 ? what is next

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

In the diagram of circle o, what is the measure of zabc?

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?