Sin theta minus cos theta barabar 0​

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

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

How can (square root of 25) ^2 be rewritten?