(Solved): Could you show the formula used to find the answer and give a step by step break down to find the an ...

Could you show the formula used to find the answer and give a step by step break down to find the answer: Decreasing returns to scale: increasing

An auto parts manufacturer hires 10 works and uses 10 machines to produce 93 units of auto parts. If the manufacturer doubles both the amounts of workers and machines, 180 units of auto parts are produced. We can conclude that the production function exhibits. and the long-run average total cost is decreasing returns to scale; decreasing decreasing returns to scale; increasing increasing returns to scale; increasing increasing returns to scale; decreasing