Find the distance between each pair of points. Round your answer to the nearest tenth, if necessary.
(8, -7), (5,1)
A 4.4
B 8.5
C 3.3
D 14.3

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