Will mark best answer as brainliest! :D How do I solve number 15 and 16? They make no sense. If you don't know what the question is asking, here is an example of the answer for number 13: E. Help!

{All points are COPLANER---look at defenitions below...}

13)E

14)F

15)A

16)D (not so sure)

water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. at this point, equilibrium is reached. in an isotonic solution, the flow of water in and out of the cell is happening at the same rate.

hope this < 3

my answer is$ 12

step-by-step explanation:

because 15 -2=12