a. After the magazine The Economist publishes an article indicating that analysts expect the value of Tunisian dinars to rise relative to Peruvian sol, Peru's currency will

Depreciate

Explanation:

The Economist is a widely respected financial and economic magazine which means that their articles can cause movements in the market especially when backed up by analysts.

The Economist believes that the Tunisian Dinar will rise relative to the Peruvian Sol, this means that the Peruvian Sol will depreciate against the Tunisian Diner. Some people and entities holding Peruvian Sol assets will try to offload it so that they do not suffer losses.

This increase in supply and reduction in demand for the Peruvian Sol will lead to it depreciating.

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.