The Following Data Summarize the Expenditures for the Country of XYZ

The following data summarize the expenditures for the country of XYZ during 2003 in millions of alphabet, the currency of country XYZ.
$\begin{array}{|l|r|}\hline \text { Gross Private Domestic Investment } & \$ 300 \\\hline \text { Business Fixed Investment } & \$ 200 \\\hline \text { Change in Inventories } & \$ 100 \\\hline \text { Exports } & \$ 200 \\\hline \text { Imports } & \$ 200 \\\hline \text { Personal Consumption Expenditures } & \$ 800 \\\hline \begin{array}{l}\text { Government Consumption Expenditures and } \\\text { Gross Investment }\end{array} &\$ 500 \\\hline \text { StatisticalDiscrepancy } &\$ 10 \\\hline \text { Depreciation Expenditures } & \$ 50 \\\hline\end{array}$
a. Calculate net exports
b. Calculate GDP
c. Calculate national income
d. Assume that the GDP deflator is 120 and calculate real GDP for 2003.