Simplify 15 divided by 3 + 2 x 10

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

In the diagram of circle o, what is the measure of zabc?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5