At last year’s hawaii state championship girls softball game a total of 900 tickets were sold which resulted in a total of $5,100 collected from ticket sales. there were 2 types of tickets sold: student tickets cost $4 each and adult tickets cost $7 each. if x represents the number of student tickets sold and y represents the number of adult tickets sold, write an equation that represents the total amount of money collected from ticket sales.

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.