Which of the following is a multiple of 4? a. 620 b. 734 c. 626 d. 891

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

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?

Me d is also an option but i couldn't get it in the picture