Plz asap i just need w solving it (explanation) don’t need the answer

He concluded that a heavier object dropped from the same height as a lighter object will land

Which one is true about the hexagons ?

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