Input output refers to productivity. Select one: True False Gross revenue includes all of the below, except Select one: a. Commissions received b. Sales of products and services c. Interest on expenses d. Profit on the sale of fixed assets Identify the option that does not refer to the three principles of financial management. Select one: a. Income and expense b. Time value of money c. Risk and return d. Cost-benefit analysis Identify the incorrect variable. The primary objective of purchasing is to obtain the correct equipment, materials and services in the: Select one: a. Right time b. Right quantity c. All of the above. d. Right supplier