TCKFinale Soccer Socks - For Boys or Girls- Men or Women - Extra Cross-Stretch For Shin Guards

For an adult women's shoe size 8 medium, what size suck needs to be ordered? The size chart was useless for this.

how many pairs do you get?

For a 9 year big kid, shoe size 5.5, wide calves, what would be the size?

Is the price for one pair?