9(3+4w)=6w-3(7-8w) what value of what is the solution to this equation

Which of the following is true for the relation f(x)=2x^2+1

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

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?