Can someone help me out --x-3>-1

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

If we pull out the middle player of team a and the fourth player of the team b. what will be the force of team a and team b? what is their sum of forces