In order to play at the cape gerbil city miniature golf club, a player has to pay the membership fee and pay for each round played. the total cost is represented by the function below: t = 33.47r + 17.72 (where t = the total cost (in dollars) and r = the number of rounds played) which of the following statements must be true? a) the slope is the membership fee of $17.72, and the y-intercept is the number of rounds played. b) the total cost is $51.19. c) the slope is the cost per round $17.72, and the y-intercept is the membership fee of $33.47. d) the slope is the cost per round $33.47, and the y-intercept is the membership fee of $17.72.