The scatter plot at the right was created to show the length of a persons vacation and the weight of the suitcase they packed. Use the scatterplot to answer questions 12-14

Brent wants to know what is 5 x 1/2

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

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?