18. If we add successive laborers to work a given amount of land on a wheat farm, eventually the increases in wheat harvested will get larger and larger. the increases in wheat harvested will get smaller and smaller. the increases in wheat harvested will rise at a constant rate. average total cost will fall to zero.

18. If we add successive laborers to work a given amount of land on a wheat farm, eventually
the increases in wheat harvested will get larger and larger.
the increases in wheat harvested will get smaller and smaller.
the increases in wheat harvested will rise at a constant rate.
average total cost will fall to zero.

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