Problem 3. Write an expression that represents the area between the two functions 9 = 30-13 + 15 and y = %:r + 4 over the interval [5, 9]. Then evaluate using Wolfram Alpha. Include a screenshot of the results. Problem 4. The marginal cost (rate of change of total cost) in dollars per unit is being modeled by the function C'(q) = 0.02133 q + 16. Write an expression for the the total (net) change in the total cost from the production level q = 5 to time q = 25, and evaluate using Wolfram Alpha. Include a screenshot of your results. Problem 5. Suppose the systolic blood pressure of a patient in response to medication can be modeled by S (t) = 8J5 + 50, where t is time in minutes after the medication was taken. Write an expression for the average value of the systolic blood pressure S (t) over the interval [0, 38]. Then use Wolfram Alpha to evaluate and include a screenshot of the results