Find the distance between (3, −7)
and (4, 1). Write your answer using a radical sign.

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?

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)

Graph the line with the given slope m and y-intercept b. m=-3,b=1