I agree with lots of people here . Mega Evolutions were not very well planned out . There should be a requirement to have high friendship to Mega Evolve , instead of just giving it a special rock and pressing a button on your wristband . <| sep |> McAfee looked like he was ready to strut right over to a beer garden and pound one . <| sep |> Raoult ' s law is an approximation assuming an ideal solution and a nonvolatile solute . This holds for very dilute systems . A real life lower vapour pressure than that predicted by Rauolt ' s law would imply stronger intermolecular forces between the solute and solvent . This seems to be the key I was missing . Thanks ! <| sep |> For 19 , look at your bracket . You can simplify w 2 1 w into w 2 w 1 w w 1 wSo essentially you have w 1 w 2 3 What ' s the formula for a b 2 ? Apply that to w 1 w 2 and see what happens