Help with circles please.!
Asap

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

What does x = in this equation x+3+2x=x+5

If the discriminant if a quadratic equation is 4 which statement describes the roots?