Which expression is not equivalent to the other expression?

Arrange these numbers from least to greatest 3/5 5/7 2/9

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Does the point (1, sqrt 7) lie on circle shown.