Joe's mother is trying to decide whether or not she should should buy a 12-ounce pack of coffee on sale for $7.50. She knows that she can buy the same coffee for $9.00 a pound. Which is the better buy? (There are 16 ounces in one pound.) A. The 12 ounce pack, which is $0.07 cheaper
B. The one pound pack, which is $0.07 cheaper
C. The 12 ounce pack, which is $7.00 cheaper
D. The one pound pack, which is $7.00 cheaper
Hurry up I need this in 5 minutes

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?

Jared had 3/7 of the minutes on a family phone plan remaining for the month. the plan is shared by 2 people. if divided equally what portion of the minutes remaining on the phone plan would be avalible for each person

Why is partitioning a directed line segment into a ratio of 1: 3 not the same as finding the length of the directed line segment?