Richard bought some grapes. He ate 5/8 pound and kept 1 1/8 pounds of grapes. He gave Chris the rest of them. How many pounds of grapes did Richard eat and keep for himself

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