The table below sets out some data for Country X in 2007.

         Item                                                             Amount

                                                                   (in billions of dollars)

Consumption expenditure                                           289

Government expenditure                                            99

Interest and investment income                                  33

Profit of corporations and government enterprises          65

Income from farms and unincorporated businesses          40

Gross investment                                                     146

Exports                                                                   36

Imports                                                                   22

Wages, salaries, and supplementary labour income          275

Capital consumption allowance                                    60

Indirect taxes less subsidies                                       75

a. Calculate net exports.

b. Use the expenditure approach to calculate GDP.

c. Use the income approach to calculate GDP.

d. Calculate net domestic product (at factor cost).

e. Calculate net domestic income (at market price).