What is the solution to the system of equations below when graphed?
y=-2x +3
y=-4x+15
a. (2,8)
b. (3.-4)
c. (1,5)
d. (6,-9)

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