What costly mistakes did napoleon make in spain and russia?

Toward the end of the roman empire, what caused a decrease in the use of coined money tell me now

When pay is made public, people evaluate how equitable their pay is in light of the pay other people are receiving. the problem in this case is that dwight and guillermo have found out that others are getting paid more than they do for the same work. what are they likely to do under these circumstances

This graph shows the marginal cost of producing each additional pair of running shoe inserts .whoih pair of shoes had a marginal cost of $3.00?