In this function Po is the air pressure at the surface of the earth and h is the height above the surface of earth measured in meters at what height will the air pressure equal 65% of the air pressure at the surface of the earth

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