1. the county fair charges $2.50 per ticket for the rides. henry bought 15 tickets for the rides and spent a total of $55.50 at the fair. henry spent his money only on ride tickets and fair admission. the price of the fair admission is the same for everyone. use x to represent the number of ride tickets and y to represent the total cost. (a) find the cost of admission to the fair. explain how you found the cost of admission. (b) write a linear equation that can be used to determine the cost for anyone who only pays for ride tickets and fair admission. (c) explain what the coefficient of x and the constant of your linear equation represents.