Michelle- $2000 earned 1.2% annual interest compounded monthly $500 lost 3% over the course of the 8 years
$500 grew, compounded continuously at rate of 0.9% annually

Kristen- $1500 earned 1.2% annual interest compounded quarterly
$1500 gained 3% over the course of 8 years

Gabriella- $3000 grew, compounded continuously at rate of 0.8% annually

Judy- $1000 decreased in value exponentially at a rate of 0.5% annually
$2000 earned 1.8% annual interest compounded biannually (twice a year)

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?