21-Fixed input is; a Free from the output amount like rental factory. b- Free from the capital of entrepreneur. c. Free from what the customer needs. d- Free from the entrepreneur's capital. 22-Production is the function of fixed and variable inputs.Long-term production cost; a-is not possible to predict since the future is unknown. b-is a good criterion for price determination in short-term. c-is unbearable compared to short -term production cost since fixed cost is increased. d-is less costly than short-term production since fixed cost is decreased. 28-Fixed cost per piece; a- Increases when the production quantity increases. b- Decreases when the production quantity decreases c Decreases when the production quantity increases. 4. Fixed cost amount is related to variable cost amount. a

21-Fixed input is:<br />d- Free from the entrepreneur's capital.<br /><br />Explanation: Fixed inputs are those that do not change with the level of production. They are not affected by the entrepreneur's capital.<br /><br />22-Production is the function of fixed and variable inputs. Long-term production cost:<br />d-is less costly than short-term production since fixed cost is decreased.<br /><br />Explanation: In the long run, fixed costs are spread over a larger number of units, making them less costly per unit compared to the short term.<br /><br />28-Fixed cost per piece:<br />b- Decreases when the production quantity decreases<br /><br />Explanation: Fixed cost per unit decreases as the production quantity increases because the fixed cost is spread over more units. Conversely, it increases when the production quantity decreases.<br /><br />4. Fixed cost amount is related to variable cost amount:<br />a- False<br /><br />Explanation: Fixed costs do not vary with the level of production, while variable costs do. Therefore, they are not directly related.