Evaluate expression: evaluate each expression when a = "-2" b=4 and c=-10 2a+b

ac-b

a+b/a

8a+5b

-4a-b

3c/-5

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