please help

You are given the following figures for U.S. international transactions in 2010 (in $ billions):

Merchandise imports	-$300
Merchandise exports	+$200
Investment income (net)	+$30
Other service transactions (net)	+$20
Foreign private assets in the United States (net increase)	+$100
U.S. private assets abroad (net increase)	-$50
Change in U.S. or foreign official reserve holdings	0

Calculate the balance of trade, balance of goods and services, balance on current account, official reserve transactions balance

Explain the difference between the current and capital accounts