A toy shop purchases stuffed animals for 2.50 each then they sell them for $7 what is the percent markup

One integer is 5 more than another. their product is 104. find the integers

Is the figure congruent? yes or no?

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