Question 8 At Bills Stadium, snow removal is currently done by a mix of workers (equipped with shovels and paid minimum wage) and automated self-operating snowblower machines, which require no labor. The stadium is currently using the optimal combination of both snowblowers and workers. If Wisconsin's minimum wage rises, and nothing else changes, what should the stadium do? Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a Employ more workers and fewer machines. b Utilize more machines and fewer workers. C Preserve the existing proportion of machines to workers. d One cannot tell. Question 9 If diminishing marginal return of labor has started, by hiring another unit of labor (all else held the same), we know that: Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a Average productivity must be falling. b Marginal cost must be falling. C Marginal cost must be rising. d Average cost must be falling