7. Barbara's recipe for sour cream pound-cakes is legendary! The total cost in dollars for Barbara to bake q pound-cakes is given by C(q) = 64 + 1.5g + 0.01q2. (a) (2 points) What term(s) represent the fixed cost? (b) (2 points) What term(s) represent the variable cost? (c) (4 points) Determine the marginal cost function. (d) (4 points) Determine the average cost function. (e) (5 points) Determine the number of pound-cakes q that minimizes the cost. (3 points) Confirm (showing your work!) that marginal cost and average cost are equal, for the value of q obtained in Part (E)