A counter in Kiera's kitchen is 1 meter wide and 3 meters long. Kiera wants to replace the counter with a granite countertop, which would cost $269.00 per square meter. How much would the granite countertop cost?

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