The Bowling/Laser Tag Decision: A group of friends must decide how many games of
bowling and laser tag to play. They decide to play at least one game of bowling and at least
one game of laser tag. Find the costs of different numbers of games to help Ernest decide how
many games to play. Remember, they want to have money left over for snacks.

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?