Your bill at a restaurant is $35.00. There is an 8% meals tax (sales tax). How much is the tax? You want to leave a 20% tip. You should calculate the tip on the $35.00 (not the cost after the tax). How much is the tip? What is the total bill?

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?