Illustrate the average–marginal rule in a noncost setting. “A firm that earns only normal profit is not covering all its costs.” Do you agree or disagree? Explain your answer. The average variable...

Illustrate the average–marginal rule in a noncost setting. “A firm that earns only normal profit is not covering all its costs.” Do you agree or disagree? Explain your answer. The average variable cost curve and the average total cost curve get closer to each other as output increases. What explains this convergence?