The sum of direct materials plus direct labor is equal to: Product cost Prime cost Cost of work-in-process Cost of goods sold from the The contribution margin is computed by subtracting sales * Total variable cost Variable manufacturing cost Variable overhead cost Prime cost Which of the following would be classified as cash flows under financing activities? Payment of interest expense of bonds payable Cash received in excess of par value of common shares Purchase of equipment on cash Issuance of notes payable to acquire land