Final answer:
The Marshall Plan provided around $13 billion in aid to help rebuild Europe after World War II and prevent the spread of Communism.
Step-by-step explanation:
The Economic Cooperation Act of 1948, commonly known as the Marshall Plan, was an American initiative to provide aid for the recovery of war-torn Europe. Officially known as the European Recovery Program, the total amount given in Marshall Aid was approximately $13 billion, which in today's money amounts to around $147 billion. The funds were vital for rebuilding infrastructure, restoring industrial capacity in Western Europe, and preventing the spread of Communism by stabilizing economies and creating markets for American products.