The highway map below shows the two exits between Tomstown (2,3) and Mount Lookout (78,71). Exit 1 is halfway between Tomstown and Mount Lookout. Exit 2 is halfway between Exit 1 and Mount Lookout. What are the coordinates of Exit 2?

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