12) The 1st week back to school, Ms. Robinson went to COSTCO and bought a large box with 1,458 pencils for her students. On the 2nd week of school, she only had 486 pencils, and so on in a
geometric sequence.
b.
How many pencils does Ms. Robinson have n the im week of schooly

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?