Initially assume that it costs $1.36 to purchase 1 euro. How many euros are needed to buy

Question:

Initially assume that it costs $1.36 to purchase 1 euro. How many euros are needed to buy $1? How many dollars are needed to purchase an item priced at 84 euros? Next, assume that the exchange rate changes to $1.30 per 1 euro. Will it take more euros or fewer euros to buy the American item priced at $84? Did the euro appreciate or depreciate relative to the dollar? Did the dollar appreciate or depreciate relative to the euro?

Exchange Rate
The value of one currency for the purpose of conversion to another. Exchange Rate means on any day, for purposes of determining the Dollar Equivalent of any currency other than Dollars, the rate at which such currency may be exchanged into Dollars...