Todd has at most 14 dimes and nickles in his pocket, and the total value of the coins is more than $1. If x represents the number of dimes and y represents the number if nickles, which system of inequalities can be used to determine how many of each coin todd has in his pocket

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?

Tell whether the two rates form a proportion

Find the distance between the pair of points a(-1,8) and b(-8,4)