Oracle Reports the Following in Footnotes to Its 2016 Form

Short Answer

Oracle reports the following in footnotes to its 2016 Form 10-K.
Geographic Information
Disclosed in the table below is geographic information for each country that comprised greater than three percent of our total revenues for any of fiscal 2016, 2015 or 2014.
(1) Long-lived assets exclude goodwill, intangible assets, equity investments and deferred taxes, which are not allocated to specific geographic locations as it is impracticable to do so.
Required:
a. What proportion of Oracle's total revenue is potentially exposed to foreign currency risk?
b. Assume that Oracle does not undertake any measures to reduce its foreign currency exposure. If the U.S. dollar strengthens on average 10% vis-à-vis the European currencies in which the company transacts, and weakens 5% relative to the Japanese yen, what will be the impact on revenues in 2016?
c. Explain what steps Oracle can take to reduce its foreign currency risk.