What two numbers add to 10 and multiply to 28

Which system of linear inequalities is represented by the graph? !

How do your peer relationships affect your overall health status? what can you do to improve your peer relationships?

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