Tanimura

Why do pure solvents show a level of horizontal curve as solidification occurs, but the curve for the solution sloped downward slightly? Thanks

Could someone check my answers for these questions: 62. Powerball is played with 55 white balls, numbered 1 through 55 and 42 red balls, numbered 1 through 42. Five white balls and one red ball are drawn. In how many ways can a player select the six numbe...

Thank you