X (liters) y (scoops)
7 28
9 36
10 40
12 48

The table shows a proportional relationship between the liters of water, x, and the number of scoops of powered punch mix, y, required to make punch. What is the unit rate?
A) 2
B) 3
C) 4
D) 6

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters