Assume quantities need not be integers. Consider an an app developer in Vietnam where the currency is the dong. Per-period demand for the app on the app store is Q(P) = 220 P/5. The developer would have to pay 65 per period to list the app, and the app store takes 20% as a service fee. Assuming the developer must charge the same price for each unit it sells, what price does it choose?

Round to two decimal places and do not enter the currency symbol. If your answer is 1.125, enter 1.13.

While a price of 1.13 is not all that realistic (as each Canadian dollar will get you roughly 18,000), do not worry about whether the answer you calculate is realistic.