Find out whether the angles are adjacent or vertical. Then find the value of x.

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

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?