A basketball team played six games. In those games, the team won by 7 points, lost by 8, won by 8, won by 11, lost by 1, and won by 13. What was the mean difference in game scores over the six games?

Ahousekeeper mixed 5 gallons of blue paint with every 9 gallon of yellow paint in order to make a green paint which ratio of gallon of blue paint to gallon of yellow paint will make the same shade of green paint