Nell made a pizza. she cut the pizza into fourths. then she cut each fourth into four pieces. nell and her friends ate 6 of the smaller pieces of the pizza. what fraction of the pizza did nell and her friends eat?

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