Solve for X: +5= 30
A. +25
B. 35
C. 35
D. no real solutions

What is sin 7x/4 ? i need on this urgent trig

Find the values of y: 3y^3(y^2+ 2/3y)=0

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?