7a - 3= 2a + 12
Solve for a.

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?

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?