Carmen is a camp counselor who takes a group of campers through activity stations, where each camper chooses one
activity. Today they are going to the arts and crafts station,
where there are 4 different activities, and the sports station,
where there are 3 different activities. How many different
combinations of activities can a camper do?
5

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?