Ahmed is taking orders for lunch. a slice of pizza cost $1.5 and a chicken sandwich costs $2.5. he collects $21.5 for the group of 9 people. let x = number of pizza orders. let y = number of chicken orders.

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