It costs $15 to become a member at Workout World Gym and then $30 per month for a membership.

A. What is the total cost (start-up fee and monthly charger) to be a member of Workout World Gym for 2 months? Show your work.

B. What is the total cost for x months? (Please show how you got it)

C. Graph the cost of the membership over a period of 2 years, using months as the units of time. Be suet to label your axes and scale them by labeling each grid line with a number.

D. Is there a proportional relationship between time and costs of the gym membership plan? Explain how you know.