Ireally need with these two above.

For the inequality |c| < |d| to be true, which of the following must be true?

An object in geometry with no width, length or height is a(n):

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