Dmitri was willing to contribute $200 this year to his local college radio station. However, after learning that the radio station already had met its goal of raising $500,000, he decided not to contribute, because he knew he could listen to it without contributing. This is an example of:

answer: most likely c

explanation:

there's 11 people for the 1st position. then, no matter who gets it, there's only 10 left for the second, and then 9 left for the third. 11 x 10 x 9 = 990.   the answer is there are 990 different ways the positions can be filled by these applicants

answer///supply is elastic, and demand is inelastic;

answer casual models;