Jamie wants to put tiles on the walls and floor of his room( but not on the ceiling). the length of his room is 10 feet, the width of his rooms is 14 feet , and the height is 12 feet. if each tile is 1 foot long and 1 foot wide how many tiles will jamie need ?

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?