katie buys several pairs of socks for $3 per pair. which equation represents katie's total cost, c, when she buys s pairs of socks and why

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

The only way to identify an intercept is as an ordered pair. true false

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?