The above table shows Homer's utility from boxes of doughnuts. As Homer's consumption of doughnuts increases, his
A) marginal utility is positive and increasing.
B) marginal utility is positive but decreasing.
C) marginal utility is negative but increasing.
D) marginal utility is negative and decreasing.
Question 2
In the above table, the firm
A) must be in a perfectly competitive market because its marginal revenue is constant.
B) must be in a perfectly competitive market because its marginal cost curve eventually rises.
C) cannot be in a perfectly competitive market because its short-run economic profits are greater than zero.
D) cannot be in a perfectly competitive market because its long-run economic profits are greater than zero.
Pierolapithecus catalunicus may be an ancestor of great apes and humans. Its postcranial skeleton sh
A complete cranium of Au. Afarensis from Hadar, Ethiopia, shows a prognathic face and a small brainc
(a) The Dmanisi cranium (right) shows similarities to early African H. erectus including the Narioko
The posted octane rating in most high-altitude areas shows regular at 85 instead of the usual 87.
Water consumption by type of use
Per capita consumption of power is high in the developed world and highest in the United States