According to a poll conducted by the Gallup Corporation in March 2011 , the metropolitan areas with the highest and lowest proportions of obese adults were Evansville, IN-KY, and Boulder, CO, respectively. In Evansville, for every 311
people who were not obese, there were 189
who were. In Boulder, for every 16
obese people, there were 109
who were not obese. At that time, the estimated populations were 358,676
for Evansville and 303,482
for Boulder. How many more obese people were there in Evansville than in Boulder?

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?

2x minus y equals 6, x plus y equals negative 3

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?