$30	$180	$30	$150	$35
A. marginal cost is increasing.
B. total cost is increasing.
C. economic profits are zero.
D. marginal revenue is constant.
Answer:D
$30	$180	$30	$150	$35
A. marginal cost is increasing. B. total cost is increasing. C. economic profits are zero. D. marginal revenue is constant.
Explanation: 55. Refer to the table below. In this instance, expansion of output