Given below are lease terms at the local dealership. Terms:

Length of lease = 36 months
MSRP of the car = $22,500
Purchase value of the car after lease = $17,500
Down payment = $1999
Monthly payment = $425
$475 security deposit
$500 acquisition fee

What is the total cash due at signing (including the first monthly payment)?

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?