Decide if the following are proportional and justify your reasoning 1
2
Number of
Toppings
Total Cost
of Toppings
Number of
Books Sold
Donations
per Sponsor
4
0
1
6
3.
2
10
8
6
3
15
10
9
4
20
12
12
5
25
The table is
because
The table is
because

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?