As the operator of Workout Fever Health Club, you calculate that your demand function is q--0.6p+450 with a domain of (200 SpS700) Where, q number of members in club p= annual membership fee (S) Create a formula to calculate revenue as a function of membership fee. Define variables, R(p) and p including units (3 points) Formula: Variables: Create a formula to calculate marginal revenue with respect to membership fee. Define variables, R'(p) and p including units (5 points) Formula: Variables: c. Calculate the marginal revenue at p $250 per year. Remember to include units with your answer. (4 points) Answer: d. Explain what your result from part c means. (3 points)