## Intermediate Algebra (6th Edition)

$1.6228\times10^{13}$ U.S. dollars
We are given that the GDP of the European Union was $16,228,000,000,000$ U.S. dollars. Step 1: To write this number in scientific notation, we move the decimal point to the left until the original number is 1.6228. Step 2: Since the original number was greater than 10, we moved the decimal by 13 positive places. In other words, we will raise 10 to a power of 13. Now, we write the product of the two numbers found in Step 1 and Step 2. $1.6228\times10^{13}$ U.S. dollars