3. Calculation questions. ( 15'*2 = 30') (1) In 2020, China's GDP is $15,870 billion, exports $2,590 billion and imports $2,056 billion. QUESTION: Please calculate calculate the foreign trade dependence (5'), export dependence (5') and import dependence (5') of China. (2) Suppose USD/AUD=1.3021, please calculate the following cross rates. a. if EUR/USD=1.1744, then EUR/AUD=? (5') b. if GBP/USD=1.3362, then GBP/AUD=? (5') c. if USD/CHF=0.9873, then AUD/CHF=? (5')