What is an equivalent expression to 11(3p +5p) + 4 x-x

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?