Yesterday, there were 90 problems assigned for math homework. Jonah did 20% of them correctly. How many problems did Jonah get right?

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

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?

50 points~ ! i have to turn this in tomarrow