The base ticket price for a football game is modeled by the function p(x) = 15x + 10, where x is the years since the team started playing football. Not included in each base ticket price is a service charge modeled by the function c(x) = 5x + 2. To find the total cost of a ticket, a fan should use what operation on the polynomials?
Addition
Subtraction
Multiplication
It cannot be determined
Addition
Subtraction
Multiplication
It cannot be determined