Please review and answer the question below.

In 2018, Country A exported $70 billion in goods. $31 billion in servicesr and $20 billion in unilateral transfers. It also imported $32 billion in services and $11 billion in unilateral transfers. The merchandise balance of trade was $16 billion while the current account balance was $18 billion. Calculate the amount of income received by Country A's investors in foreign stocks and bonds if foreign investors received $21 billion in Country A's assets in 2018. Enteryour answer in the box below