Four balls are selected at random without replacement from an urn containing three white balls and five blue balls. find the probability of the given event. (round your answer to three decimal places.) all of the balls are blue

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