Solve number $10$ A and B

Table $10\mathrm{.}6$ summarizes hypothetical transactions, in billions of U$.$S$.$ dollars, that took place during a given year.

TABLE $10\mathrm{.}6$

International Transactions of the United States

$($billions of dollars$)$

a$.$ Calculate the U$.$S$.$ merchandise trade, services, goods and services, income, unilateral transfers, and current account balances.

b$.$ Which of these balances pertains to the net foreign investment position of the United States? How would you describe that position?