The substitute teacher offered the students candy for correctly solving math problems. so, for that entire week, whenever she put a problem on the board, the conditioned students eagerly copied it down and expanded maximum effort to solve it correctly. then, on monday, their regular math teacher came back. that day, when she put a problem on the board, the students still retained some of their eagerness. by tuesday, however all had suddenly seemed to lose interest in doing math. why?

Click on  the link  to view information gathered by the organization keep america beautiful. read "the costs of american littering" to find three negative effects of litter in local communities.  based on your research, what are the negative effects of litter in local communities? check all that apply.litter cleanup is very expensive.litter has decreased since 1969.litter is a constant community problem.litter causes property in the community to be less valuable.litter contaminates water and has other environmental consequences.

Economic growth in the united states does not affect the economies of other countries. select the best answer from the choices provided t f

What does the author describe in this passage