Lunch in Jamie’s dorm is an all-you-can-eat buffet, served from 11 a.m. until 1 p.m. By
noon, the buffet is picked over, and by 12:30, there are very few popular items left. The
garbage bins, though, are full of food.
Refer to the information given above. Over time, you would expect that students would:
A. stop eating so much at lunch because they would notice that it generates waste.
B. start distributing themselves more evenly over the lunch hours to avoid long lines.
C. come earlier and earlier for lunch in order to have a better selection from which to
choose.
D. be pickier in their selections from the buffet.
Amy is thinking about going to the movies tonight. A ticket costs $7 and she will have
to cancel her dog-sitting job that pays $30. The cost of seeing the movie is:
A. $7.
B. $30.
C. $37.
D. $37 minus the benefit of seeing the movie.